Home / 38,641.32-57,939.75-20,607.30

Finding the Fourth Proportional to 38,641.32, 57,939.75 and 20,607.30

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Solution

The fourth proportional to 38,641.32, 57,939.75 and 20,607.30 is: 30,899.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,641.32 : 57,939.75 = 20,607.30 : x
  2. Step 2: Convert to fraction form
    38,641.32/57,939.75 = 20,607.30/x
  3. Step 3: Cross multiply
    38,641.32x = 57,939.75 × 20,607.30
  4. Step 4: Simplify right side
    38,641.32x = 1,193,981,810.18
  5. Step 5: Solve for x
    x = 1,193,981,810.18/38,641.32
  6. Step 6: Final answer
    x = 30,899.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.