Home / 40,639.26-60,941.52-13,987.92

Finding the Fourth Proportional to 40,639.26, 60,941.52 and 13,987.92

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Solution

The fourth proportional to 40,639.26, 60,941.52 and 13,987.92 is: 20,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,639.26 : 60,941.52 = 13,987.92 : x
  2. Step 2: Convert to fraction form
    40,639.26/60,941.52 = 13,987.92/x
  3. Step 3: Cross multiply
    40,639.26x = 60,941.52 × 13,987.92
  4. Step 4: Simplify right side
    40,639.26x = 852,445,106.44
  5. Step 5: Solve for x
    x = 852,445,106.44/40,639.26
  6. Step 6: Final answer
    x = 20,975.90

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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.