Home / 40,143.93-55,407.84-26,715.75

Finding the Fourth Proportional to 40,143.93, 55,407.84 and 26,715.75

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Solution

The fourth proportional to 40,143.93, 55,407.84 and 26,715.75 is: 36,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,143.93 : 55,407.84 = 26,715.75 : x
  2. Step 2: Convert to fraction form
    40,143.93/55,407.84 = 26,715.75/x
  3. Step 3: Cross multiply
    40,143.93x = 55,407.84 × 26,715.75
  4. Step 4: Simplify right side
    40,143.93x = 1,480,262,001.48
  5. Step 5: Solve for x
    x = 1,480,262,001.48/40,143.93
  6. Step 6: Final answer
    x = 36,873.87

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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.