Home / 19,887.12-29,834.28-16,221.84

Finding the Fourth Proportional to 19,887.12, 29,834.28 and 16,221.84

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Solution

The fourth proportional to 19,887.12, 29,834.28 and 16,221.84 is: 24,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.12 : 29,834.28 = 16,221.84 : x
  2. Step 2: Convert to fraction form
    19,887.12/29,834.28 = 16,221.84/x
  3. Step 3: Cross multiply
    19,887.12x = 29,834.28 × 16,221.84
  4. Step 4: Simplify right side
    19,887.12x = 483,966,916.68
  5. Step 5: Solve for x
    x = 483,966,916.68/19,887.12
  6. Step 6: Final answer
    x = 24,335.70

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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.