Home / 22,780.48-34,149.96-7,981.36

Finding the Fourth Proportional to 22,780.48, 34,149.96 and 7,981.36

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Solution

The fourth proportional to 22,780.48, 34,149.96 and 7,981.36 is: 11,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,780.48 : 34,149.96 = 7,981.36 : x
  2. Step 2: Convert to fraction form
    22,780.48/34,149.96 = 7,981.36/x
  3. Step 3: Cross multiply
    22,780.48x = 34,149.96 × 7,981.36
  4. Step 4: Simplify right side
    22,780.48x = 272,563,124.75
  5. Step 5: Solve for x
    x = 272,563,124.75/22,780.48
  6. Step 6: Final answer
    x = 11,964.77

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1.5x scale

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.