Home / 31,400.85-47,109.48-10,344.09

Finding the Fourth Proportional to 31,400.85, 47,109.48 and 10,344.09

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Solution

The fourth proportional to 31,400.85, 47,109.48 and 10,344.09 is: 15,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,400.85 : 47,109.48 = 10,344.09 : x
  2. Step 2: Convert to fraction form
    31,400.85/47,109.48 = 10,344.09/x
  3. Step 3: Cross multiply
    31,400.85x = 47,109.48 × 10,344.09
  4. Step 4: Simplify right side
    31,400.85x = 487,304,700.97
  5. Step 5: Solve for x
    x = 487,304,700.97/31,400.85
  6. Step 6: Final answer
    x = 15,518.84

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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.