Home / 22,649.11-31,256.57-12,577.72

Finding the Fourth Proportional to 22,649.11, 31,256.57 and 12,577.72

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Solution

The fourth proportional to 22,649.11, 31,256.57 and 12,577.72 is: 17,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,649.11 : 31,256.57 = 12,577.72 : x
  2. Step 2: Convert to fraction form
    22,649.11/31,256.57 = 12,577.72/x
  3. Step 3: Cross multiply
    22,649.11x = 31,256.57 × 12,577.72
  4. Step 4: Simplify right side
    22,649.11x = 393,136,385.62
  5. Step 5: Solve for x
    x = 393,136,385.62/22,649.11
  6. Step 6: Final answer
    x = 17,357.70

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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.