Home / 42,320.88-63,435.68-18,607.36

Finding the Fourth Proportional to 42,320.88, 63,435.68 and 18,607.36

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Solution

The fourth proportional to 42,320.88, 63,435.68 and 18,607.36 is: 27,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,320.88 : 63,435.68 = 18,607.36 : x
  2. Step 2: Convert to fraction form
    42,320.88/63,435.68 = 18,607.36/x
  3. Step 3: Cross multiply
    42,320.88x = 63,435.68 × 18,607.36
  4. Step 4: Simplify right side
    42,320.88x = 1,180,370,534.60
  5. Step 5: Solve for x
    x = 1,180,370,534.60/42,320.88
  6. Step 6: Final answer
    x = 27,890.97

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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.