Home / 22,686.66-31,307.22-12,613.86

Finding the Fourth Proportional to 22,686.66, 31,307.22 and 12,613.86

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Solution

The fourth proportional to 22,686.66, 31,307.22 and 12,613.86 is: 17,406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.66 : 31,307.22 = 12,613.86 : x
  2. Step 2: Convert to fraction form
    22,686.66/31,307.22 = 12,613.86/x
  3. Step 3: Cross multiply
    22,686.66x = 31,307.22 × 12,613.86
  4. Step 4: Simplify right side
    22,686.66x = 394,904,890.07
  5. Step 5: Solve for x
    x = 394,904,890.07/22,686.66
  6. Step 6: Final answer
    x = 17,406.92

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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.