Home / 29,338.24-40,486.60-15,909.80

Finding the Fourth Proportional to 29,338.24, 40,486.60 and 15,909.80

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Solution

The fourth proportional to 29,338.24, 40,486.60 and 15,909.80 is: 21,955.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,338.24 : 40,486.60 = 15,909.80 : x
  2. Step 2: Convert to fraction form
    29,338.24/40,486.60 = 15,909.80/x
  3. Step 3: Cross multiply
    29,338.24x = 40,486.60 × 15,909.80
  4. Step 4: Simplify right side
    29,338.24x = 644,133,708.68
  5. Step 5: Solve for x
    x = 644,133,708.68/29,338.24
  6. Step 6: Final answer
    x = 21,955.43

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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.