Home / 42,288.95-63,405.83-13,822.40

Finding the Fourth Proportional to 42,288.95, 63,405.83 and 13,822.40

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Solution

The fourth proportional to 42,288.95, 63,405.83 and 13,822.40 is: 20,724.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,288.95 : 63,405.83 = 13,822.40 : x
  2. Step 2: Convert to fraction form
    42,288.95/63,405.83 = 13,822.40/x
  3. Step 3: Cross multiply
    42,288.95x = 63,405.83 × 13,822.40
  4. Step 4: Simplify right side
    42,288.95x = 876,420,358.45
  5. Step 5: Solve for x
    x = 876,420,358.45/42,288.95
  6. Step 6: Final answer
    x = 20,724.57

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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.