Home / 31,481.42-47,210.78-10,417.57

Finding the Fourth Proportional to 31,481.42, 47,210.78 and 10,417.57

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Solution

The fourth proportional to 31,481.42, 47,210.78 and 10,417.57 is: 15,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.42 : 47,210.78 = 10,417.57 : x
  2. Step 2: Convert to fraction form
    31,481.42/47,210.78 = 10,417.57/x
  3. Step 3: Cross multiply
    31,481.42x = 47,210.78 × 10,417.57
  4. Step 4: Simplify right side
    31,481.42x = 491,821,621.47
  5. Step 5: Solve for x
    x = 491,821,621.47/31,481.42
  6. Step 6: Final answer
    x = 15,622.60

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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.