Home / 42,443.36-63,647.04-20,231.04

Finding the Fourth Proportional to 42,443.36, 63,647.04 and 20,231.04

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Solution

The fourth proportional to 42,443.36, 63,647.04 and 20,231.04 is: 30,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,443.36 : 63,647.04 = 20,231.04 : x
  2. Step 2: Convert to fraction form
    42,443.36/63,647.04 = 20,231.04/x
  3. Step 3: Cross multiply
    42,443.36x = 63,647.04 × 20,231.04
  4. Step 4: Simplify right side
    42,443.36x = 1,287,645,812.12
  5. Step 5: Solve for x
    x = 1,287,645,812.12/42,443.36
  6. Step 6: Final answer
    x = 30,337.98

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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.