Home / 40,690.16-56,149.20-22,781

Finding the Fourth Proportional to 40,690.16, 56,149.20 and 22,781

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Solution

The fourth proportional to 40,690.16, 56,149.20 and 22,781 is: 31,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,690.16 : 56,149.20 = 22,781 : x
  2. Step 2: Convert to fraction form
    40,690.16/56,149.20 = 22,781/x
  3. Step 3: Cross multiply
    40,690.16x = 56,149.20 × 22,781
  4. Step 4: Simplify right side
    40,690.16x = 1,279,134,925.20
  5. Step 5: Solve for x
    x = 1,279,134,925.20/40,690.16
  6. Step 6: Final answer
    x = 31,435.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.