Home / 31,401.29-47,110.91-12,671.66

Finding the Fourth Proportional to 31,401.29, 47,110.91 and 12,671.66

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Solution

The fourth proportional to 31,401.29, 47,110.91 and 12,671.66 is: 19,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,401.29 : 47,110.91 = 12,671.66 : x
  2. Step 2: Convert to fraction form
    31,401.29/47,110.91 = 12,671.66/x
  3. Step 3: Cross multiply
    31,401.29x = 47,110.91 × 12,671.66
  4. Step 4: Simplify right side
    31,401.29x = 596,973,134.90
  5. Step 5: Solve for x
    x = 596,973,134.90/31,401.29
  6. Step 6: Final answer
    x = 19,011.11

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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.