Home / 42,201.20-63,316.20-18,834.80

Finding the Fourth Proportional to 42,201.20, 63,316.20 and 18,834.80

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Solution

The fourth proportional to 42,201.20, 63,316.20 and 18,834.80 is: 28,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,201.20 : 63,316.20 = 18,834.80 : x
  2. Step 2: Convert to fraction form
    42,201.20/63,316.20 = 18,834.80/x
  3. Step 3: Cross multiply
    42,201.20x = 63,316.20 × 18,834.80
  4. Step 4: Simplify right side
    42,201.20x = 1,192,547,963.76
  5. Step 5: Solve for x
    x = 1,192,547,963.76/42,201.20
  6. Step 6: Final answer
    x = 28,258.63

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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.