Home / 38,569.47-53,220.55-21,572.83

Finding the Fourth Proportional to 38,569.47, 53,220.55 and 21,572.83

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Solution

The fourth proportional to 38,569.47, 53,220.55 and 21,572.83 is: 29,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,569.47 : 53,220.55 = 21,572.83 : x
  2. Step 2: Convert to fraction form
    38,569.47/53,220.55 = 21,572.83/x
  3. Step 3: Cross multiply
    38,569.47x = 53,220.55 × 21,572.83
  4. Step 4: Simplify right side
    38,569.47x = 1,148,117,956.78
  5. Step 5: Solve for x
    x = 1,148,117,956.78/38,569.47
  6. Step 6: Final answer
    x = 29,767.53

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Half scale
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Double scale
Find fourth proportional to 38,570.47, 53,221.93 and 21,573.83
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.