Home / 26,687.64-40,038.02-18,805.55

Finding the Fourth Proportional to 26,687.64, 40,038.02 and 18,805.55

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Solution

The fourth proportional to 26,687.64, 40,038.02 and 18,805.55 is: 28,212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.64 : 40,038.02 = 18,805.55 : x
  2. Step 2: Convert to fraction form
    26,687.64/40,038.02 = 18,805.55/x
  3. Step 3: Cross multiply
    26,687.64x = 40,038.02 × 18,805.55
  4. Step 4: Simplify right side
    26,687.64x = 752,936,833.83
  5. Step 5: Solve for x
    x = 752,936,833.83/26,687.64
  6. Step 6: Final answer
    x = 28,212.94

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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.