Home / 38,123.04-52,609.76-21,356.16

Finding the Fourth Proportional to 38,123.04, 52,609.76 and 21,356.16

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Solution

The fourth proportional to 38,123.04, 52,609.76 and 21,356.16 is: 29,471.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,123.04 : 52,609.76 = 21,356.16 : x
  2. Step 2: Convert to fraction form
    38,123.04/52,609.76 = 21,356.16/x
  3. Step 3: Cross multiply
    38,123.04x = 52,609.76 × 21,356.16
  4. Step 4: Simplify right side
    38,123.04x = 1,123,542,452.12
  5. Step 5: Solve for x
    x = 1,123,542,452.12/38,123.04
  6. Step 6: Final answer
    x = 29,471.48

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Double scale
Find fourth proportional to 38,124.04, 52,611.14 and 21,357.16
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.