Home / 31,687.14-47,547.12-16,104.78

Finding the Fourth Proportional to 31,687.14, 47,547.12 and 16,104.78

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Solution

The fourth proportional to 31,687.14, 47,547.12 and 16,104.78 is: 24,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,687.14 : 47,547.12 = 16,104.78 : x
  2. Step 2: Convert to fraction form
    31,687.14/47,547.12 = 16,104.78/x
  3. Step 3: Cross multiply
    31,687.14x = 47,547.12 × 16,104.78
  4. Step 4: Simplify right side
    31,687.14x = 765,735,907.23
  5. Step 5: Solve for x
    x = 765,735,907.23/31,687.14
  6. Step 6: Final answer
    x = 24,165.51

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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.