Home / 26,079.78-35,990.11-14,143.07

Finding the Fourth Proportional to 26,079.78, 35,990.11 and 14,143.07

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Solution

The fourth proportional to 26,079.78, 35,990.11 and 14,143.07 is: 19,517.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,079.78 : 35,990.11 = 14,143.07 : x
  2. Step 2: Convert to fraction form
    26,079.78/35,990.11 = 14,143.07/x
  3. Step 3: Cross multiply
    26,079.78x = 35,990.11 × 14,143.07
  4. Step 4: Simplify right side
    26,079.78x = 509,010,752.69
  5. Step 5: Solve for x
    x = 509,010,752.69/26,079.78
  6. Step 6: Final answer
    x = 19,517.45

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1.5x scale

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.