Home / 31,329.21-47,017.17-12,609.42

Finding the Fourth Proportional to 31,329.21, 47,017.17 and 12,609.42

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Solution

The fourth proportional to 31,329.21, 47,017.17 and 12,609.42 is: 18,923.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.21 : 47,017.17 = 12,609.42 : x
  2. Step 2: Convert to fraction form
    31,329.21/47,017.17 = 12,609.42/x
  3. Step 3: Cross multiply
    31,329.21x = 47,017.17 × 12,609.42
  4. Step 4: Simplify right side
    31,329.21x = 592,859,243.74
  5. Step 5: Solve for x
    x = 592,859,243.74/31,329.21
  6. Step 6: Final answer
    x = 18,923.53

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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.