Home / 20,032.50-27,645.90-11,535.90

Finding the Fourth Proportional to 20,032.50, 27,645.90 and 11,535.90

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Solution

The fourth proportional to 20,032.50, 27,645.90 and 11,535.90 is: 15,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.50 : 27,645.90 = 11,535.90 : x
  2. Step 2: Convert to fraction form
    20,032.50/27,645.90 = 11,535.90/x
  3. Step 3: Cross multiply
    20,032.50x = 27,645.90 × 11,535.90
  4. Step 4: Simplify right side
    20,032.50x = 318,920,337.81
  5. Step 5: Solve for x
    x = 318,920,337.81/20,032.50
  6. Step 6: Final answer
    x = 15,920.15

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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.