Home / 34,249.88-47,266.64-20,818.95

Finding the Fourth Proportional to 34,249.88, 47,266.64 and 20,818.95

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Solution

The fourth proportional to 34,249.88, 47,266.64 and 20,818.95 is: 28,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,249.88 : 47,266.64 = 20,818.95 : x
  2. Step 2: Convert to fraction form
    34,249.88/47,266.64 = 20,818.95/x
  3. Step 3: Cross multiply
    34,249.88x = 47,266.64 × 20,818.95
  4. Step 4: Simplify right side
    34,249.88x = 984,041,710.73
  5. Step 5: Solve for x
    x = 984,041,710.73/34,249.88
  6. Step 6: Final answer
    x = 28,731.25

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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.