Home / 43,151.28-64,731.50-13,165.44

Finding the Fourth Proportional to 43,151.28, 64,731.50 and 13,165.44

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Solution

The fourth proportional to 43,151.28, 64,731.50 and 13,165.44 is: 19,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,151.28 : 64,731.50 = 13,165.44 : x
  2. Step 2: Convert to fraction form
    43,151.28/64,731.50 = 13,165.44/x
  3. Step 3: Cross multiply
    43,151.28x = 64,731.50 × 13,165.44
  4. Step 4: Simplify right side
    43,151.28x = 852,218,494.22
  5. Step 5: Solve for x
    x = 852,218,494.22/43,151.28
  6. Step 6: Final answer
    x = 19,749.55

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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.