Home / 42,563.35-63,822.85-15,887.40

Finding the Fourth Proportional to 42,563.35, 63,822.85 and 15,887.40

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Solution

The fourth proportional to 42,563.35, 63,822.85 and 15,887.40 is: 23,822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,563.35 : 63,822.85 = 15,887.40 : x
  2. Step 2: Convert to fraction form
    42,563.35/63,822.85 = 15,887.40/x
  3. Step 3: Cross multiply
    42,563.35x = 63,822.85 × 15,887.40
  4. Step 4: Simplify right side
    42,563.35x = 1,013,978,947.81
  5. Step 5: Solve for x
    x = 1,013,978,947.81/42,563.35
  6. Step 6: Final answer
    x = 23,822.82

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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.