Home / 40,128.31-60,159.61-15,154.18

Finding the Fourth Proportional to 40,128.31, 60,159.61 and 15,154.18

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Solution

The fourth proportional to 40,128.31, 60,159.61 and 15,154.18 is: 22,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128.31 : 60,159.61 = 15,154.18 : x
  2. Step 2: Convert to fraction form
    40,128.31/60,159.61 = 15,154.18/x
  3. Step 3: Cross multiply
    40,128.31x = 60,159.61 × 15,154.18
  4. Step 4: Simplify right side
    40,128.31x = 911,669,558.67
  5. Step 5: Solve for x
    x = 911,669,558.67/40,128.31
  6. Step 6: Final answer
    x = 22,718.86

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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.