Home / 22,689.66-31,311.36-12,616.86

Finding the Fourth Proportional to 22,689.66, 31,311.36 and 12,616.86

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Solution

The fourth proportional to 22,689.66, 31,311.36 and 12,616.86 is: 17,411.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.66 : 31,311.36 = 12,616.86 : x
  2. Step 2: Convert to fraction form
    22,689.66/31,311.36 = 12,616.86/x
  3. Step 3: Cross multiply
    22,689.66x = 31,311.36 × 12,616.86
  4. Step 4: Simplify right side
    22,689.66x = 395,051,045.53
  5. Step 5: Solve for x
    x = 395,051,045.53/22,689.66
  6. Step 6: Final answer
    x = 17,411.06

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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.