Home / 34,252.65-47,270.45-20,821.70

Finding the Fourth Proportional to 34,252.65, 47,270.45 and 20,821.70

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Solution

The fourth proportional to 34,252.65, 47,270.45 and 20,821.70 is: 28,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,252.65 : 47,270.45 = 20,821.70 : x
  2. Step 2: Convert to fraction form
    34,252.65/47,270.45 = 20,821.70/x
  3. Step 3: Cross multiply
    34,252.65x = 47,270.45 × 20,821.70
  4. Step 4: Simplify right side
    34,252.65x = 984,251,128.77
  5. Step 5: Solve for x
    x = 984,251,128.77/34,252.65
  6. Step 6: Final answer
    x = 28,735.04

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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.