Home / 43,114.80-64,672.20-15,407.28

Finding the Fourth Proportional to 43,114.80, 64,672.20 and 15,407.28

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Solution

The fourth proportional to 43,114.80, 64,672.20 and 15,407.28 is: 23,110.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,114.80 : 64,672.20 = 15,407.28 : x
  2. Step 2: Convert to fraction form
    43,114.80/64,672.20 = 15,407.28/x
  3. Step 3: Cross multiply
    43,114.80x = 64,672.20 × 15,407.28
  4. Step 4: Simplify right side
    43,114.80x = 996,422,693.62
  5. Step 5: Solve for x
    x = 996,422,693.62/43,114.80
  6. Step 6: Final answer
    x = 23,110.92

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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.