Home / 23,156.10-31,955.45-12,545.73

Finding the Fourth Proportional to 23,156.10, 31,955.45 and 12,545.73

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Solution

The fourth proportional to 23,156.10, 31,955.45 and 12,545.73 is: 17,313.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,156.10 : 31,955.45 = 12,545.73 : x
  2. Step 2: Convert to fraction form
    23,156.10/31,955.45 = 12,545.73/x
  3. Step 3: Cross multiply
    23,156.10x = 31,955.45 × 12,545.73
  4. Step 4: Simplify right side
    23,156.10x = 400,904,385.00
  5. Step 5: Solve for x
    x = 400,904,385.00/23,156.10
  6. Step 6: Final answer
    x = 17,313.12

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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.