Home / 20,710.18-31,060.05-5,919.17

Finding the Fourth Proportional to 20,710.18, 31,060.05 and 5,919.17

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Solution

The fourth proportional to 20,710.18, 31,060.05 and 5,919.17 is: 8,877.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.18 : 31,060.05 = 5,919.17 : x
  2. Step 2: Convert to fraction form
    20,710.18/31,060.05 = 5,919.17/x
  3. Step 3: Cross multiply
    20,710.18x = 31,060.05 × 5,919.17
  4. Step 4: Simplify right side
    20,710.18x = 183,849,716.16
  5. Step 5: Solve for x
    x = 183,849,716.16/20,710.18
  6. Step 6: Final answer
    x = 8,877.27

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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.