Home / 22,239.28-30,689.04-12,165.76

Finding the Fourth Proportional to 22,239.28, 30,689.04 and 12,165.76

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Solution

The fourth proportional to 22,239.28, 30,689.04 and 12,165.76 is: 16,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239.28 : 30,689.04 = 12,165.76 : x
  2. Step 2: Convert to fraction form
    22,239.28/30,689.04 = 12,165.76/x
  3. Step 3: Cross multiply
    22,239.28x = 30,689.04 × 12,165.76
  4. Step 4: Simplify right side
    22,239.28x = 373,355,495.27
  5. Step 5: Solve for x
    x = 373,355,495.27/22,239.28
  6. Step 6: Final answer
    x = 16,788.11

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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.