Home / 26,863.20-37,065.60-15,685.20

Finding the Fourth Proportional to 26,863.20, 37,065.60 and 15,685.20

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Solution

The fourth proportional to 26,863.20, 37,065.60 and 15,685.20 is: 21,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,863.20 : 37,065.60 = 15,685.20 : x
  2. Step 2: Convert to fraction form
    26,863.20/37,065.60 = 15,685.20/x
  3. Step 3: Cross multiply
    26,863.20x = 37,065.60 × 15,685.20
  4. Step 4: Simplify right side
    26,863.20x = 581,381,349.12
  5. Step 5: Solve for x
    x = 581,381,349.12/26,863.20
  6. Step 6: Final answer
    x = 21,642.30

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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.