Home / 40,128.81-60,160.35-15,154.68

Finding the Fourth Proportional to 40,128.81, 60,160.35 and 15,154.68

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Solution

The fourth proportional to 40,128.81, 60,160.35 and 15,154.68 is: 22,719.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128.81 : 60,160.35 = 15,154.68 : x
  2. Step 2: Convert to fraction form
    40,128.81/60,160.35 = 15,154.68/x
  3. Step 3: Cross multiply
    40,128.81x = 60,160.35 × 15,154.68
  4. Step 4: Simplify right side
    40,128.81x = 911,710,852.94
  5. Step 5: Solve for x
    x = 911,710,852.94/40,128.81
  6. Step 6: Final answer
    x = 22,719.61

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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.