Home / 23,108.43-31,890.06-13,555.17

Finding the Fourth Proportional to 23,108.43, 31,890.06 and 13,555.17

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Solution

The fourth proportional to 23,108.43, 31,890.06 and 13,555.17 is: 18,706.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,108.43 : 31,890.06 = 13,555.17 : x
  2. Step 2: Convert to fraction form
    23,108.43/31,890.06 = 13,555.17/x
  3. Step 3: Cross multiply
    23,108.43x = 31,890.06 × 13,555.17
  4. Step 4: Simplify right side
    23,108.43x = 432,275,184.61
  5. Step 5: Solve for x
    x = 432,275,184.61/23,108.43
  6. Step 6: Final answer
    x = 18,706.38

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Half scale
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Double scale
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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.