Home / 38,566.12-53,220.66-21,570.76

Finding the Fourth Proportional to 38,566.12, 53,220.66 and 21,570.76

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Solution

The fourth proportional to 38,566.12, 53,220.66 and 21,570.76 is: 29,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,566.12 : 53,220.66 = 21,570.76 : x
  2. Step 2: Convert to fraction form
    38,566.12/53,220.66 = 21,570.76/x
  3. Step 3: Cross multiply
    38,566.12x = 53,220.66 × 21,570.76
  4. Step 4: Simplify right side
    38,566.12x = 1,148,010,083.90
  5. Step 5: Solve for x
    x = 1,148,010,083.90/38,566.12
  6. Step 6: Final answer
    x = 29,767.32

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Double scale
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Similar ratio
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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.