Home / 22,885.20-34,327.80-12,387.60

Finding the Fourth Proportional to 22,885.20, 34,327.80 and 12,387.60

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Solution

The fourth proportional to 22,885.20, 34,327.80 and 12,387.60 is: 18,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,885.20 : 34,327.80 = 12,387.60 : x
  2. Step 2: Convert to fraction form
    22,885.20/34,327.80 = 12,387.60/x
  3. Step 3: Cross multiply
    22,885.20x = 34,327.80 × 12,387.60
  4. Step 4: Simplify right side
    22,885.20x = 425,239,055.28
  5. Step 5: Solve for x
    x = 425,239,055.28/22,885.20
  6. Step 6: Final answer
    x = 18,581.40

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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.