Home / 26,218.10-39,294.30-20,649.44

Finding the Fourth Proportional to 26,218.10, 39,294.30 and 20,649.44

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Solution

The fourth proportional to 26,218.10, 39,294.30 and 20,649.44 is: 30,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,218.10 : 39,294.30 = 20,649.44 : x
  2. Step 2: Convert to fraction form
    26,218.10/39,294.30 = 20,649.44/x
  3. Step 3: Cross multiply
    26,218.10x = 39,294.30 × 20,649.44
  4. Step 4: Simplify right side
    26,218.10x = 811,405,465.86
  5. Step 5: Solve for x
    x = 811,405,465.86/26,218.10
  6. Step 6: Final answer
    x = 30,948.29

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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.