Home / 42,324.40-63,513.60-20,162.80

Finding the Fourth Proportional to 42,324.40, 63,513.60 and 20,162.80

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Solution

The fourth proportional to 42,324.40, 63,513.60 and 20,162.80 is: 30,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,324.40 : 63,513.60 = 20,162.80 : x
  2. Step 2: Convert to fraction form
    42,324.40/63,513.60 = 20,162.80/x
  3. Step 3: Cross multiply
    42,324.40x = 63,513.60 × 20,162.80
  4. Step 4: Simplify right side
    42,324.40x = 1,280,612,014.08
  5. Step 5: Solve for x
    x = 1,280,612,014.08/42,324.40
  6. Step 6: Final answer
    x = 30,257.06

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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.