Home / 38,457.35-53,071.16-21,229.73

Finding the Fourth Proportional to 38,457.35, 53,071.16 and 21,229.73

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Solution

The fourth proportional to 38,457.35, 53,071.16 and 21,229.73 is: 29,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,457.35 : 53,071.16 = 21,229.73 : x
  2. Step 2: Convert to fraction form
    38,457.35/53,071.16 = 21,229.73/x
  3. Step 3: Cross multiply
    38,457.35x = 53,071.16 × 21,229.73
  4. Step 4: Simplify right side
    38,457.35x = 1,126,686,397.59
  5. Step 5: Solve for x
    x = 1,126,686,397.59/38,457.35
  6. Step 6: Final answer
    x = 29,297.04

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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.