Home / 26,145.10-39,219.78-15,686.60

Finding the Fourth Proportional to 26,145.10, 39,219.78 and 15,686.60

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Solution

The fourth proportional to 26,145.10, 39,219.78 and 15,686.60 is: 23,531.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,145.10 : 39,219.78 = 15,686.60 : x
  2. Step 2: Convert to fraction form
    26,145.10/39,219.78 = 15,686.60/x
  3. Step 3: Cross multiply
    26,145.10x = 39,219.78 × 15,686.60
  4. Step 4: Simplify right side
    26,145.10x = 615,225,000.95
  5. Step 5: Solve for x
    x = 615,225,000.95/26,145.10
  6. Step 6: Final answer
    x = 23,531.18

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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.