Home / 42,145.31-63,217.97-10,980.56

Finding the Fourth Proportional to 42,145.31, 63,217.97 and 10,980.56

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Solution

The fourth proportional to 42,145.31, 63,217.97 and 10,980.56 is: 16,470.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,145.31 : 63,217.97 = 10,980.56 : x
  2. Step 2: Convert to fraction form
    42,145.31/63,217.97 = 10,980.56/x
  3. Step 3: Cross multiply
    42,145.31x = 63,217.97 × 10,980.56
  4. Step 4: Simplify right side
    42,145.31x = 694,168,856.98
  5. Step 5: Solve for x
    x = 694,168,856.98/42,145.31
  6. Step 6: Final answer
    x = 16,470.84

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1.5x scale

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.