Home / 42,602.04-63,932.22-20,430.72

Finding the Fourth Proportional to 42,602.04, 63,932.22 and 20,430.72

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Solution

The fourth proportional to 42,602.04, 63,932.22 and 20,430.72 is: 30,660.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,602.04 : 63,932.22 = 20,430.72 : x
  2. Step 2: Convert to fraction form
    42,602.04/63,932.22 = 20,430.72/x
  3. Step 3: Cross multiply
    42,602.04x = 63,932.22 × 20,430.72
  4. Step 4: Simplify right side
    42,602.04x = 1,306,181,285.80
  5. Step 5: Solve for x
    x = 1,306,181,285.80/42,602.04
  6. Step 6: Final answer
    x = 30,660.06

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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.