Home / 34,390.17-47,449.80-20,240.28

Finding the Fourth Proportional to 34,390.17, 47,449.80 and 20,240.28

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Solution

The fourth proportional to 34,390.17, 47,449.80 and 20,240.28 is: 27,926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,390.17 : 47,449.80 = 20,240.28 : x
  2. Step 2: Convert to fraction form
    34,390.17/47,449.80 = 20,240.28/x
  3. Step 3: Cross multiply
    34,390.17x = 47,449.80 × 20,240.28
  4. Step 4: Simplify right side
    34,390.17x = 960,397,237.94
  5. Step 5: Solve for x
    x = 960,397,237.94/34,390.17
  6. Step 6: Final answer
    x = 27,926.50

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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.