Home / 38,123.08-52,609.80-21,356.08

Finding the Fourth Proportional to 38,123.08, 52,609.80 and 21,356.08

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Solution

The fourth proportional to 38,123.08, 52,609.80 and 21,356.08 is: 29,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,123.08 : 52,609.80 = 21,356.08 : x
  2. Step 2: Convert to fraction form
    38,123.08/52,609.80 = 21,356.08/x
  3. Step 3: Cross multiply
    38,123.08x = 52,609.80 × 21,356.08
  4. Step 4: Simplify right side
    38,123.08x = 1,123,539,097.58
  5. Step 5: Solve for x
    x = 1,123,539,097.58/38,123.08
  6. Step 6: Final answer
    x = 29,471.36

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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.