Home / 42,476.28-63,718.08-11,311.56

Finding the Fourth Proportional to 42,476.28, 63,718.08 and 11,311.56

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Solution

The fourth proportional to 42,476.28, 63,718.08 and 11,311.56 is: 16,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,476.28 : 63,718.08 = 11,311.56 : x
  2. Step 2: Convert to fraction form
    42,476.28/63,718.08 = 11,311.56/x
  3. Step 3: Cross multiply
    42,476.28x = 63,718.08 × 11,311.56
  4. Step 4: Simplify right side
    42,476.28x = 720,750,885.00
  5. Step 5: Solve for x
    x = 720,750,885.00/42,476.28
  6. Step 6: Final answer
    x = 16,968.31

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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.