Home / 29,348.15-40,489.38-21,709.71

Finding the Fourth Proportional to 29,348.15, 40,489.38 and 21,709.71

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Solution

The fourth proportional to 29,348.15, 40,489.38 and 21,709.71 is: 29,951.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,348.15 : 40,489.38 = 21,709.71 : x
  2. Step 2: Convert to fraction form
    29,348.15/40,489.38 = 21,709.71/x
  3. Step 3: Cross multiply
    29,348.15x = 40,489.38 × 21,709.71
  4. Step 4: Simplify right side
    29,348.15x = 879,012,697.88
  5. Step 5: Solve for x
    x = 879,012,697.88/29,348.15
  6. Step 6: Final answer
    x = 29,951.22

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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.