Home / 34,297.91-47,335.45-20,868.36

Finding the Fourth Proportional to 34,297.91, 47,335.45 and 20,868.36

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Solution

The fourth proportional to 34,297.91, 47,335.45 and 20,868.36 is: 28,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,297.91 : 47,335.45 = 20,868.36 : x
  2. Step 2: Convert to fraction form
    34,297.91/47,335.45 = 20,868.36/x
  3. Step 3: Cross multiply
    34,297.91x = 47,335.45 × 20,868.36
  4. Step 4: Simplify right side
    34,297.91x = 987,813,211.36
  5. Step 5: Solve for x
    x = 987,813,211.36/34,297.91
  6. Step 6: Final answer
    x = 28,800.97

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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.