Home / 29,393.47-40,540.76-20,436.49

Finding the Fourth Proportional to 29,393.47, 40,540.76 and 20,436.49

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Solution

The fourth proportional to 29,393.47, 40,540.76 and 20,436.49 is: 28,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,393.47 : 40,540.76 = 20,436.49 : x
  2. Step 2: Convert to fraction form
    29,393.47/40,540.76 = 20,436.49/x
  3. Step 3: Cross multiply
    29,393.47x = 40,540.76 × 20,436.49
  4. Step 4: Simplify right side
    29,393.47x = 828,510,709.43
  5. Step 5: Solve for x
    x = 828,510,709.43/29,393.47
  6. Step 6: Final answer
    x = 28,186.90

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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.