Home / 34,243.20-47,260.80-20,102.40

Finding the Fourth Proportional to 34,243.20, 47,260.80 and 20,102.40

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Solution

The fourth proportional to 34,243.20, 47,260.80 and 20,102.40 is: 27,744.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,243.20 : 47,260.80 = 20,102.40 : x
  2. Step 2: Convert to fraction form
    34,243.20/47,260.80 = 20,102.40/x
  3. Step 3: Cross multiply
    34,243.20x = 47,260.80 × 20,102.40
  4. Step 4: Simplify right side
    34,243.20x = 950,055,505.92
  5. Step 5: Solve for x
    x = 950,055,505.92/34,243.20
  6. Step 6: Final answer
    x = 27,744.36

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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.