Home / 42,240.26-63,360.39-12,657.44

Finding the Fourth Proportional to 42,240.26, 63,360.39 and 12,657.44

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Solution

The fourth proportional to 42,240.26, 63,360.39 and 12,657.44 is: 18,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,240.26 : 63,360.39 = 12,657.44 : x
  2. Step 2: Convert to fraction form
    42,240.26/63,360.39 = 12,657.44/x
  3. Step 3: Cross multiply
    42,240.26x = 63,360.39 × 12,657.44
  4. Step 4: Simplify right side
    42,240.26x = 801,980,334.80
  5. Step 5: Solve for x
    x = 801,980,334.80/42,240.26
  6. Step 6: Final answer
    x = 18,986.16

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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.