Home / 42,219.52-63,319.81-12,633.56

Finding the Fourth Proportional to 42,219.52, 63,319.81 and 12,633.56

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Solution

The fourth proportional to 42,219.52, 63,319.81 and 12,633.56 is: 18,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,219.52 : 63,319.81 = 12,633.56 : x
  2. Step 2: Convert to fraction form
    42,219.52/63,319.81 = 12,633.56/x
  3. Step 3: Cross multiply
    42,219.52x = 63,319.81 × 12,633.56
  4. Step 4: Simplify right side
    42,219.52x = 799,954,618.82
  5. Step 5: Solve for x
    x = 799,954,618.82/42,219.52
  6. Step 6: Final answer
    x = 18,947.51

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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.