Home / 20,864.92-31,294.02-9,175.96

Finding the Fourth Proportional to 20,864.92, 31,294.02 and 9,175.96

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Solution

The fourth proportional to 20,864.92, 31,294.02 and 9,175.96 is: 13,762.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864.92 : 31,294.02 = 9,175.96 : x
  2. Step 2: Convert to fraction form
    20,864.92/31,294.02 = 9,175.96/x
  3. Step 3: Cross multiply
    20,864.92x = 31,294.02 × 9,175.96
  4. Step 4: Simplify right side
    20,864.92x = 287,152,675.76
  5. Step 5: Solve for x
    x = 287,152,675.76/20,864.92
  6. Step 6: Final answer
    x = 13,762.46

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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.