Home / 29,378.10-40,520.82-20,750.40

Finding the Fourth Proportional to 29,378.10, 40,520.82 and 20,750.40

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Solution

The fourth proportional to 29,378.10, 40,520.82 and 20,750.40 is: 28,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,378.10 : 40,520.82 = 20,750.40 : x
  2. Step 2: Convert to fraction form
    29,378.10/40,520.82 = 20,750.40/x
  3. Step 3: Cross multiply
    29,378.10x = 40,520.82 × 20,750.40
  4. Step 4: Simplify right side
    29,378.10x = 840,823,223.33
  5. Step 5: Solve for x
    x = 840,823,223.33/29,378.10
  6. Step 6: Final answer
    x = 28,620.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.