Home / 43,309.26-64,967.25-13,728.78

Finding the Fourth Proportional to 43,309.26, 64,967.25 and 13,728.78

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Solution

The fourth proportional to 43,309.26, 64,967.25 and 13,728.78 is: 20,594.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,309.26 : 64,967.25 = 13,728.78 : x
  2. Step 2: Convert to fraction form
    43,309.26/64,967.25 = 13,728.78/x
  3. Step 3: Cross multiply
    43,309.26x = 64,967.25 × 13,728.78
  4. Step 4: Simplify right side
    43,309.26x = 891,921,082.46
  5. Step 5: Solve for x
    x = 891,921,082.46/43,309.26
  6. Step 6: Final answer
    x = 20,594.24

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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.