Home / 42,360.40-63,499.28-20,167.82

Finding the Fourth Proportional to 42,360.40, 63,499.28 and 20,167.82

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Solution

The fourth proportional to 42,360.40, 63,499.28 and 20,167.82 is: 30,232.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,360.40 : 63,499.28 = 20,167.82 : x
  2. Step 2: Convert to fraction form
    42,360.40/63,499.28 = 20,167.82/x
  3. Step 3: Cross multiply
    42,360.40x = 63,499.28 × 20,167.82
  4. Step 4: Simplify right side
    42,360.40x = 1,280,641,782.09
  5. Step 5: Solve for x
    x = 1,280,641,782.09/42,360.40
  6. Step 6: Final answer
    x = 30,232.05

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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.