Home / 22,780.77-34,176.02-7,990.58

Finding the Fourth Proportional to 22,780.77, 34,176.02 and 7,990.58

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Solution

The fourth proportional to 22,780.77, 34,176.02 and 7,990.58 is: 11,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,780.77 : 34,176.02 = 7,990.58 : x
  2. Step 2: Convert to fraction form
    22,780.77/34,176.02 = 7,990.58/x
  3. Step 3: Cross multiply
    22,780.77x = 34,176.02 × 7,990.58
  4. Step 4: Simplify right side
    22,780.77x = 273,086,011.06
  5. Step 5: Solve for x
    x = 273,086,011.06/22,780.77
  6. Step 6: Final answer
    x = 11,987.57

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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.