Home / 22,678.14-31,288.36-13,722.24

Finding the Fourth Proportional to 22,678.14, 31,288.36 and 13,722.24

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Solution

The fourth proportional to 22,678.14, 31,288.36 and 13,722.24 is: 18,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.14 : 31,288.36 = 13,722.24 : x
  2. Step 2: Convert to fraction form
    22,678.14/31,288.36 = 13,722.24/x
  3. Step 3: Cross multiply
    22,678.14x = 31,288.36 × 13,722.24
  4. Step 4: Simplify right side
    22,678.14x = 429,346,385.13
  5. Step 5: Solve for x
    x = 429,346,385.13/22,678.14
  6. Step 6: Final answer
    x = 18,932.17

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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.