Home / 34,297.79-47,296.17-20,855.95

Finding the Fourth Proportional to 34,297.79, 47,296.17 and 20,855.95

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Solution

The fourth proportional to 34,297.79, 47,296.17 and 20,855.95 is: 28,760.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,297.79 : 47,296.17 = 20,855.95 : x
  2. Step 2: Convert to fraction form
    34,297.79/47,296.17 = 20,855.95/x
  3. Step 3: Cross multiply
    34,297.79x = 47,296.17 × 20,855.95
  4. Step 4: Simplify right side
    34,297.79x = 986,406,438.47
  5. Step 5: Solve for x
    x = 986,406,438.47/34,297.79
  6. Step 6: Final answer
    x = 28,760.06

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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.