Home / 26,903.30-40,329.35-20,976.90

Finding the Fourth Proportional to 26,903.30, 40,329.35 and 20,976.90

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Solution

The fourth proportional to 26,903.30, 40,329.35 and 20,976.90 is: 31,445.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,903.30 : 40,329.35 = 20,976.90 : x
  2. Step 2: Convert to fraction form
    26,903.30/40,329.35 = 20,976.90/x
  3. Step 3: Cross multiply
    26,903.30x = 40,329.35 × 20,976.90
  4. Step 4: Simplify right side
    26,903.30x = 845,984,742.02
  5. Step 5: Solve for x
    x = 845,984,742.02/26,903.30
  6. Step 6: Final answer
    x = 31,445.39

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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.