Home / 31,680.70-47,501-26,982.30

Finding the Fourth Proportional to 31,680.70, 47,501 and 26,982.30

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Solution

The fourth proportional to 31,680.70, 47,501 and 26,982.30 is: 40,456.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.70 : 47,501 = 26,982.30 : x
  2. Step 2: Convert to fraction form
    31,680.70/47,501 = 26,982.30/x
  3. Step 3: Cross multiply
    31,680.70x = 47,501 × 26,982.30
  4. Step 4: Simplify right side
    31,680.70x = 1,281,686,232.30
  5. Step 5: Solve for x
    x = 1,281,686,232.30/31,680.70
  6. Step 6: Final answer
    x = 40,456.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.