Home / 39,433.28-59,143.52-13,138.24

Finding the Fourth Proportional to 39,433.28, 59,143.52 and 13,138.24

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Solution

The fourth proportional to 39,433.28, 59,143.52 and 13,138.24 is: 19,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,433.28 : 59,143.52 = 13,138.24 : x
  2. Step 2: Convert to fraction form
    39,433.28/59,143.52 = 13,138.24/x
  3. Step 3: Cross multiply
    39,433.28x = 59,143.52 × 13,138.24
  4. Step 4: Simplify right side
    39,433.28x = 777,041,760.20
  5. Step 5: Solve for x
    x = 777,041,760.20/39,433.28
  6. Step 6: Final answer
    x = 19,705.23

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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.