Home / 38,572.07-53,228.75-21,805.07

Finding the Fourth Proportional to 38,572.07, 53,228.75 and 21,805.07

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Solution

The fourth proportional to 38,572.07, 53,228.75 and 21,805.07 is: 30,090.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,572.07 : 53,228.75 = 21,805.07 : x
  2. Step 2: Convert to fraction form
    38,572.07/53,228.75 = 21,805.07/x
  3. Step 3: Cross multiply
    38,572.07x = 53,228.75 × 21,805.07
  4. Step 4: Simplify right side
    38,572.07x = 1,160,656,244.59
  5. Step 5: Solve for x
    x = 1,160,656,244.59/38,572.07
  6. Step 6: Final answer
    x = 30,090.59

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Half scale
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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.