Home / 40,919.20-61,411.20-15,971.20

Finding the Fourth Proportional to 40,919.20, 61,411.20 and 15,971.20

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Solution

The fourth proportional to 40,919.20, 61,411.20 and 15,971.20 is: 23,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,919.20 : 61,411.20 = 15,971.20 : x
  2. Step 2: Convert to fraction form
    40,919.20/61,411.20 = 15,971.20/x
  3. Step 3: Cross multiply
    40,919.20x = 61,411.20 × 15,971.20
  4. Step 4: Simplify right side
    40,919.20x = 980,810,557.44
  5. Step 5: Solve for x
    x = 980,810,557.44/40,919.20
  6. Step 6: Final answer
    x = 23,969.45

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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.