Home / 21,929.13-32,896.89-6,931.17

Finding the Fourth Proportional to 21,929.13, 32,896.89 and 6,931.17

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Solution

The fourth proportional to 21,929.13, 32,896.89 and 6,931.17 is: 10,397.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.13 : 32,896.89 = 6,931.17 : x
  2. Step 2: Convert to fraction form
    21,929.13/32,896.89 = 6,931.17/x
  3. Step 3: Cross multiply
    21,929.13x = 32,896.89 × 6,931.17
  4. Step 4: Simplify right side
    21,929.13x = 228,013,937.06
  5. Step 5: Solve for x
    x = 228,013,937.06/21,929.13
  6. Step 6: Final answer
    x = 10,397.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.