Home / 26,781.02-40,143.20-9,903.18

Finding the Fourth Proportional to 26,781.02, 40,143.20 and 9,903.18

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Solution

The fourth proportional to 26,781.02, 40,143.20 and 9,903.18 is: 14,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.02 : 40,143.20 = 9,903.18 : x
  2. Step 2: Convert to fraction form
    26,781.02/40,143.20 = 9,903.18/x
  3. Step 3: Cross multiply
    26,781.02x = 40,143.20 × 9,903.18
  4. Step 4: Simplify right side
    26,781.02x = 397,545,335.38
  5. Step 5: Solve for x
    x = 397,545,335.38/26,781.02
  6. Step 6: Final answer
    x = 14,844.30

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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.