Home / 42,641.28-63,960.48-11,475.36

Finding the Fourth Proportional to 42,641.28, 63,960.48 and 11,475.36

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Solution

The fourth proportional to 42,641.28, 63,960.48 and 11,475.36 is: 17,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,641.28 : 63,960.48 = 11,475.36 : x
  2. Step 2: Convert to fraction form
    42,641.28/63,960.48 = 11,475.36/x
  3. Step 3: Cross multiply
    42,641.28x = 63,960.48 × 11,475.36
  4. Step 4: Simplify right side
    42,641.28x = 733,969,533.77
  5. Step 5: Solve for x
    x = 733,969,533.77/42,641.28
  6. Step 6: Final answer
    x = 17,212.65

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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.