Home / 40,142.32-60,216.72-12,440.32

Finding the Fourth Proportional to 40,142.32, 60,216.72 and 12,440.32

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Solution

The fourth proportional to 40,142.32, 60,216.72 and 12,440.32 is: 18,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.32 : 60,216.72 = 12,440.32 : x
  2. Step 2: Convert to fraction form
    40,142.32/60,216.72 = 12,440.32/x
  3. Step 3: Cross multiply
    40,142.32x = 60,216.72 × 12,440.32
  4. Step 4: Simplify right side
    40,142.32x = 749,115,266.15
  5. Step 5: Solve for x
    x = 749,115,266.15/40,142.32
  6. Step 6: Final answer
    x = 18,661.48

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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.