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Finding the Fourth Proportional to 38,281.43, 52,828.52 and 21,287.22

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Solution

The fourth proportional to 38,281.43, 52,828.52 and 21,287.22 is: 29,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,281.43 : 52,828.52 = 21,287.22 : x
  2. Step 2: Convert to fraction form
    38,281.43/52,828.52 = 21,287.22/x
  3. Step 3: Cross multiply
    38,281.43x = 52,828.52 × 21,287.22
  4. Step 4: Simplify right side
    38,281.43x = 1,124,572,221.08
  5. Step 5: Solve for x
    x = 1,124,572,221.08/38,281.43
  6. Step 6: Final answer
    x = 29,376.45

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Find fourth proportional to 38,282.43, 52,829.90 and 21,288.22
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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.