Home / 42,234.40-63,351.60-18,906.40

Finding the Fourth Proportional to 42,234.40, 63,351.60 and 18,906.40

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Solution

The fourth proportional to 42,234.40, 63,351.60 and 18,906.40 is: 28,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,234.40 : 63,351.60 = 18,906.40 : x
  2. Step 2: Convert to fraction form
    42,234.40/63,351.60 = 18,906.40/x
  3. Step 3: Cross multiply
    42,234.40x = 63,351.60 × 18,906.40
  4. Step 4: Simplify right side
    42,234.40x = 1,197,750,690.24
  5. Step 5: Solve for x
    x = 1,197,750,690.24/42,234.40
  6. Step 6: Final answer
    x = 28,359.60

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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.