Home / 20,010.24-30,002.40-9,612

Finding the Fourth Proportional to 20,010.24, 30,002.40 and 9,612

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Solution

The fourth proportional to 20,010.24, 30,002.40 and 9,612 is: 14,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.24 : 30,002.40 = 9,612 : x
  2. Step 2: Convert to fraction form
    20,010.24/30,002.40 = 9,612/x
  3. Step 3: Cross multiply
    20,010.24x = 30,002.40 × 9,612
  4. Step 4: Simplify right side
    20,010.24x = 288,383,068.80
  5. Step 5: Solve for x
    x = 288,383,068.80/20,010.24
  6. Step 6: Final answer
    x = 14,411.77

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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.