Home / 26,679.10-39,980.18-20,326.70

Finding the Fourth Proportional to 26,679.10, 39,980.18 and 20,326.70

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Solution

The fourth proportional to 26,679.10, 39,980.18 and 20,326.70 is: 30,460.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,679.10 : 39,980.18 = 20,326.70 : x
  2. Step 2: Convert to fraction form
    26,679.10/39,980.18 = 20,326.70/x
  3. Step 3: Cross multiply
    26,679.10x = 39,980.18 × 20,326.70
  4. Step 4: Simplify right side
    26,679.10x = 812,665,050.68
  5. Step 5: Solve for x
    x = 812,665,050.68/26,679.10
  6. Step 6: Final answer
    x = 30,460.74

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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.