Home / 42,617.28-63,960.16-19,245.76

Finding the Fourth Proportional to 42,617.28, 63,960.16 and 19,245.76

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Solution

The fourth proportional to 42,617.28, 63,960.16 and 19,245.76 is: 28,884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,617.28 : 63,960.16 = 19,245.76 : x
  2. Step 2: Convert to fraction form
    42,617.28/63,960.16 = 19,245.76/x
  3. Step 3: Cross multiply
    42,617.28x = 63,960.16 × 19,245.76
  4. Step 4: Simplify right side
    42,617.28x = 1,230,961,888.92
  5. Step 5: Solve for x
    x = 1,230,961,888.92/42,617.28
  6. Step 6: Final answer
    x = 28,884.10

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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.