Home / 29,143.85-43,711.10-10,420.39

Finding the Fourth Proportional to 29,143.85, 43,711.10 and 10,420.39

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Solution

The fourth proportional to 29,143.85, 43,711.10 and 10,420.39 is: 15,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,143.85 : 43,711.10 = 10,420.39 : x
  2. Step 2: Convert to fraction form
    29,143.85/43,711.10 = 10,420.39/x
  3. Step 3: Cross multiply
    29,143.85x = 43,711.10 × 10,420.39
  4. Step 4: Simplify right side
    29,143.85x = 455,486,626.10
  5. Step 5: Solve for x
    x = 455,486,626.10/29,143.85
  6. Step 6: Final answer
    x = 15,628.91

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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.