Home / 40,518.84-60,759.38-12,431.66

Finding the Fourth Proportional to 40,518.84, 60,759.38 and 12,431.66

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Solution

The fourth proportional to 40,518.84, 60,759.38 and 12,431.66 is: 18,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,518.84 : 60,759.38 = 12,431.66 : x
  2. Step 2: Convert to fraction form
    40,518.84/60,759.38 = 12,431.66/x
  3. Step 3: Cross multiply
    40,518.84x = 60,759.38 × 12,431.66
  4. Step 4: Simplify right side
    40,518.84x = 755,339,953.97
  5. Step 5: Solve for x
    x = 755,339,953.97/40,518.84
  6. Step 6: Final answer
    x = 18,641.70

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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.