Home / 42,512.13-63,740.86-20,325.02

Finding the Fourth Proportional to 42,512.13, 63,740.86 and 20,325.02

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Solution

The fourth proportional to 42,512.13, 63,740.86 and 20,325.02 is: 30,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,512.13 : 63,740.86 = 20,325.02 : x
  2. Step 2: Convert to fraction form
    42,512.13/63,740.86 = 20,325.02/x
  3. Step 3: Cross multiply
    42,512.13x = 63,740.86 × 20,325.02
  4. Step 4: Simplify right side
    42,512.13x = 1,295,533,884.80
  5. Step 5: Solve for x
    x = 1,295,533,884.80/42,512.13
  6. Step 6: Final answer
    x = 30,474.45

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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.