Home / 22,981.70-31,714.26-13,553.30

Finding the Fourth Proportional to 22,981.70, 31,714.26 and 13,553.30

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Solution

The fourth proportional to 22,981.70, 31,714.26 and 13,553.30 is: 18,703.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,981.70 : 31,714.26 = 13,553.30 : x
  2. Step 2: Convert to fraction form
    22,981.70/31,714.26 = 13,553.30/x
  3. Step 3: Cross multiply
    22,981.70x = 31,714.26 × 13,553.30
  4. Step 4: Simplify right side
    22,981.70x = 429,832,880.06
  5. Step 5: Solve for x
    x = 429,832,880.06/22,981.70
  6. Step 6: Final answer
    x = 18,703.27

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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.