Home / 40,995.20-61,492.68-12,917.60

Finding the Fourth Proportional to 40,995.20, 61,492.68 and 12,917.60

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Solution

The fourth proportional to 40,995.20, 61,492.68 and 12,917.60 is: 19,376.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,995.20 : 61,492.68 = 12,917.60 : x
  2. Step 2: Convert to fraction form
    40,995.20/61,492.68 = 12,917.60/x
  3. Step 3: Cross multiply
    40,995.20x = 61,492.68 × 12,917.60
  4. Step 4: Simplify right side
    40,995.20x = 794,337,843.17
  5. Step 5: Solve for x
    x = 794,337,843.17/40,995.20
  6. Step 6: Final answer
    x = 19,376.36

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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.