Home / 34,724.76-47,920.20-18,809.25

Finding the Fourth Proportional to 34,724.76, 47,920.20 and 18,809.25

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Solution

The fourth proportional to 34,724.76, 47,920.20 and 18,809.25 is: 25,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,724.76 : 47,920.20 = 18,809.25 : x
  2. Step 2: Convert to fraction form
    34,724.76/47,920.20 = 18,809.25/x
  3. Step 3: Cross multiply
    34,724.76x = 47,920.20 × 18,809.25
  4. Step 4: Simplify right side
    34,724.76x = 901,343,021.85
  5. Step 5: Solve for x
    x = 901,343,021.85/34,724.76
  6. Step 6: Final answer
    x = 25,956.78

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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.