Home / 22,513.11-31,070.52-12,953.43

Finding the Fourth Proportional to 22,513.11, 31,070.52 and 12,953.43

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Solution

The fourth proportional to 22,513.11, 31,070.52 and 12,953.43 is: 17,877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,513.11 : 31,070.52 = 12,953.43 : x
  2. Step 2: Convert to fraction form
    22,513.11/31,070.52 = 12,953.43/x
  3. Step 3: Cross multiply
    22,513.11x = 31,070.52 × 12,953.43
  4. Step 4: Simplify right side
    22,513.11x = 402,469,805.88
  5. Step 5: Solve for x
    x = 402,469,805.88/22,513.11
  6. Step 6: Final answer
    x = 17,877.13

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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.