Home / 26,913.96-40,338-20,319.48

Finding the Fourth Proportional to 26,913.96, 40,338 and 20,319.48

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Solution

The fourth proportional to 26,913.96, 40,338 and 20,319.48 is: 30,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,913.96 : 40,338 = 20,319.48 : x
  2. Step 2: Convert to fraction form
    26,913.96/40,338 = 20,319.48/x
  3. Step 3: Cross multiply
    26,913.96x = 40,338 × 20,319.48
  4. Step 4: Simplify right side
    26,913.96x = 819,647,184.24
  5. Step 5: Solve for x
    x = 819,647,184.24/26,913.96
  6. Step 6: Final answer
    x = 30,454.35

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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.