Home / 20,920.48-31,337.52-16,767.52

Finding the Fourth Proportional to 20,920.48, 31,337.52 and 16,767.52

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Solution

The fourth proportional to 20,920.48, 31,337.52 and 16,767.52 is: 25,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,920.48 : 31,337.52 = 16,767.52 : x
  2. Step 2: Convert to fraction form
    20,920.48/31,337.52 = 16,767.52/x
  3. Step 3: Cross multiply
    20,920.48x = 31,337.52 × 16,767.52
  4. Step 4: Simplify right side
    20,920.48x = 525,452,493.35
  5. Step 5: Solve for x
    x = 525,452,493.35/20,920.48
  6. Step 6: Final answer
    x = 25,116.66

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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.