Home / 29,378.31-40,542.78-15,950.13

Finding the Fourth Proportional to 29,378.31, 40,542.78 and 15,950.13

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Solution

The fourth proportional to 29,378.31, 40,542.78 and 15,950.13 is: 22,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,378.31 : 40,542.78 = 15,950.13 : x
  2. Step 2: Convert to fraction form
    29,378.31/40,542.78 = 15,950.13/x
  3. Step 3: Cross multiply
    29,378.31x = 40,542.78 × 15,950.13
  4. Step 4: Simplify right side
    29,378.31x = 646,662,611.56
  5. Step 5: Solve for x
    x = 646,662,611.56/29,378.31
  6. Step 6: Final answer
    x = 22,011.57

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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.