Home / 29,303.68-40,439.20-15,874.96

Finding the Fourth Proportional to 29,303.68, 40,439.20 and 15,874.96

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Solution

The fourth proportional to 29,303.68, 40,439.20 and 15,874.96 is: 21,907.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,303.68 : 40,439.20 = 15,874.96 : x
  2. Step 2: Convert to fraction form
    29,303.68/40,439.20 = 15,874.96/x
  3. Step 3: Cross multiply
    29,303.68x = 40,439.20 × 15,874.96
  4. Step 4: Simplify right side
    29,303.68x = 641,970,682.43
  5. Step 5: Solve for x
    x = 641,970,682.43/29,303.68
  6. Step 6: Final answer
    x = 21,907.51

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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.