Home / 31,478.06-47,220.54-10,410.42

Finding the Fourth Proportional to 31,478.06, 47,220.54 and 10,410.42

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Solution

The fourth proportional to 31,478.06, 47,220.54 and 10,410.42 is: 15,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.06 : 47,220.54 = 10,410.42 : x
  2. Step 2: Convert to fraction form
    31,478.06/47,220.54 = 10,410.42/x
  3. Step 3: Cross multiply
    31,478.06x = 47,220.54 × 10,410.42
  4. Step 4: Simplify right side
    31,478.06x = 491,585,758.34
  5. Step 5: Solve for x
    x = 491,585,758.34/31,478.06
  6. Step 6: Final answer
    x = 15,616.78

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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.