Home / 42,278.90-63,403.61-14,192.96

Finding the Fourth Proportional to 42,278.90, 63,403.61 and 14,192.96

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Solution

The fourth proportional to 42,278.90, 63,403.61 and 14,192.96 is: 21,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,278.90 : 63,403.61 = 14,192.96 : x
  2. Step 2: Convert to fraction form
    42,278.90/63,403.61 = 14,192.96/x
  3. Step 3: Cross multiply
    42,278.90x = 63,403.61 × 14,192.96
  4. Step 4: Simplify right side
    42,278.90x = 899,884,512.60
  5. Step 5: Solve for x
    x = 899,884,512.60/42,278.90
  6. Step 6: Final answer
    x = 21,284.49

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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.