Home / 26,999.10-40,498.65-20,438.10

Finding the Fourth Proportional to 26,999.10, 40,498.65 and 20,438.10

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Solution

The fourth proportional to 26,999.10, 40,498.65 and 20,438.10 is: 30,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,999.10 : 40,498.65 = 20,438.10 : x
  2. Step 2: Convert to fraction form
    26,999.10/40,498.65 = 20,438.10/x
  3. Step 3: Cross multiply
    26,999.10x = 40,498.65 × 20,438.10
  4. Step 4: Simplify right side
    26,999.10x = 827,715,458.57
  5. Step 5: Solve for x
    x = 827,715,458.57/26,999.10
  6. Step 6: Final answer
    x = 30,657.15

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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.