Home / 22,508.49-31,055.40-12,947.88

Finding the Fourth Proportional to 22,508.49, 31,055.40 and 12,947.88

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Solution

The fourth proportional to 22,508.49, 31,055.40 and 12,947.88 is: 17,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,508.49 : 31,055.40 = 12,947.88 : x
  2. Step 2: Convert to fraction form
    22,508.49/31,055.40 = 12,947.88/x
  3. Step 3: Cross multiply
    22,508.49x = 31,055.40 × 12,947.88
  4. Step 4: Simplify right side
    22,508.49x = 402,101,592.55
  5. Step 5: Solve for x
    x = 402,101,592.55/22,508.49
  6. Step 6: Final answer
    x = 17,864.44

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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.