Home / 23,155.89-31,955.28-12,545.52

Finding the Fourth Proportional to 23,155.89, 31,955.28 and 12,545.52

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Solution

The fourth proportional to 23,155.89, 31,955.28 and 12,545.52 is: 17,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,155.89 : 31,955.28 = 12,545.52 : x
  2. Step 2: Convert to fraction form
    23,155.89/31,955.28 = 12,545.52/x
  3. Step 3: Cross multiply
    23,155.89x = 31,955.28 × 12,545.52
  4. Step 4: Simplify right side
    23,155.89x = 400,895,604.35
  5. Step 5: Solve for x
    x = 400,895,604.35/23,155.89
  6. Step 6: Final answer
    x = 17,312.90

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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.