Home / 31,680.68-47,531.58-10,622.81

Finding the Fourth Proportional to 31,680.68, 47,531.58 and 10,622.81

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Solution

The fourth proportional to 31,680.68, 47,531.58 and 10,622.81 is: 15,937.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.68 : 47,531.58 = 10,622.81 : x
  2. Step 2: Convert to fraction form
    31,680.68/47,531.58 = 10,622.81/x
  3. Step 3: Cross multiply
    31,680.68x = 47,531.58 × 10,622.81
  4. Step 4: Simplify right side
    31,680.68x = 504,918,705.68
  5. Step 5: Solve for x
    x = 504,918,705.68/31,680.68
  6. Step 6: Final answer
    x = 15,937.75

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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.