Home / 42,309.06-63,454.68-12,718.14

Finding the Fourth Proportional to 42,309.06, 63,454.68 and 12,718.14

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Solution

The fourth proportional to 42,309.06, 63,454.68 and 12,718.14 is: 19,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,309.06 : 63,454.68 = 12,718.14 : x
  2. Step 2: Convert to fraction form
    42,309.06/63,454.68 = 12,718.14/x
  3. Step 3: Cross multiply
    42,309.06x = 63,454.68 × 12,718.14
  4. Step 4: Simplify right side
    42,309.06x = 807,025,503.90
  5. Step 5: Solve for x
    x = 807,025,503.90/42,309.06
  6. Step 6: Final answer
    x = 19,074.53

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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.