Home / 39,433.68-59,159.88-13,138.56

Finding the Fourth Proportional to 39,433.68, 59,159.88 and 13,138.56

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Solution

The fourth proportional to 39,433.68, 59,159.88 and 13,138.56 is: 19,710.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,433.68 : 59,159.88 = 13,138.56 : x
  2. Step 2: Convert to fraction form
    39,433.68/59,159.88 = 13,138.56/x
  3. Step 3: Cross multiply
    39,433.68x = 59,159.88 × 13,138.56
  4. Step 4: Simplify right side
    39,433.68x = 777,275,632.97
  5. Step 5: Solve for x
    x = 777,275,632.97/39,433.68
  6. Step 6: Final answer
    x = 19,710.96

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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.