Home / 22,328.72-30,815.18-14,761.90

Finding the Fourth Proportional to 22,328.72, 30,815.18 and 14,761.90

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Solution

The fourth proportional to 22,328.72, 30,815.18 and 14,761.90 is: 20,372.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,328.72 : 30,815.18 = 14,761.90 : x
  2. Step 2: Convert to fraction form
    22,328.72/30,815.18 = 14,761.90/x
  3. Step 3: Cross multiply
    22,328.72x = 30,815.18 × 14,761.90
  4. Step 4: Simplify right side
    22,328.72x = 454,890,565.51
  5. Step 5: Solve for x
    x = 454,890,565.51/22,328.72
  6. Step 6: Final answer
    x = 20,372.45

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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.