Home / 22,306.04-30,780.08-12,877.64

Finding the Fourth Proportional to 22,306.04, 30,780.08 and 12,877.64

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Solution

The fourth proportional to 22,306.04, 30,780.08 and 12,877.64 is: 17,769.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,306.04 : 30,780.08 = 12,877.64 : x
  2. Step 2: Convert to fraction form
    22,306.04/30,780.08 = 12,877.64/x
  3. Step 3: Cross multiply
    22,306.04x = 30,780.08 × 12,877.64
  4. Step 4: Simplify right side
    22,306.04x = 396,374,789.41
  5. Step 5: Solve for x
    x = 396,374,789.41/22,306.04
  6. Step 6: Final answer
    x = 17,769.84

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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.