Home / 31,518.27-47,284.68-10,456.74

Finding the Fourth Proportional to 31,518.27, 47,284.68 and 10,456.74

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Solution

The fourth proportional to 31,518.27, 47,284.68 and 10,456.74 is: 15,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.27 : 47,284.68 = 10,456.74 : x
  2. Step 2: Convert to fraction form
    31,518.27/47,284.68 = 10,456.74/x
  3. Step 3: Cross multiply
    31,518.27x = 47,284.68 × 10,456.74
  4. Step 4: Simplify right side
    31,518.27x = 494,443,604.74
  5. Step 5: Solve for x
    x = 494,443,604.74/31,518.27
  6. Step 6: Final answer
    x = 15,687.52

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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.