Home / 42,454.06-63,681.26-12,872.16

Finding the Fourth Proportional to 42,454.06, 63,681.26 and 12,872.16

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Solution

The fourth proportional to 42,454.06, 63,681.26 and 12,872.16 is: 19,308.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,454.06 : 63,681.26 = 12,872.16 : x
  2. Step 2: Convert to fraction form
    42,454.06/63,681.26 = 12,872.16/x
  3. Step 3: Cross multiply
    42,454.06x = 63,681.26 × 12,872.16
  4. Step 4: Simplify right side
    42,454.06x = 819,715,367.72
  5. Step 5: Solve for x
    x = 819,715,367.72/42,454.06
  6. Step 6: Final answer
    x = 19,308.29

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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.