Home / 42,276.66-63,396.26-18,886.74

Finding the Fourth Proportional to 42,276.66, 63,396.26 and 18,886.74

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Solution

The fourth proportional to 42,276.66, 63,396.26 and 18,886.74 is: 28,321.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,276.66 : 63,396.26 = 18,886.74 : x
  2. Step 2: Convert to fraction form
    42,276.66/63,396.26 = 18,886.74/x
  3. Step 3: Cross multiply
    42,276.66x = 63,396.26 × 18,886.74
  4. Step 4: Simplify right side
    42,276.66x = 1,197,348,679.59
  5. Step 5: Solve for x
    x = 1,197,348,679.59/42,276.66
  6. Step 6: Final answer
    x = 28,321.74

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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.