Home / 31,401.85-47,110.98-10,345.09

Finding the Fourth Proportional to 31,401.85, 47,110.98 and 10,345.09

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Solution

The fourth proportional to 31,401.85, 47,110.98 and 10,345.09 is: 15,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,401.85 : 47,110.98 = 10,345.09 : x
  2. Step 2: Convert to fraction form
    31,401.85/47,110.98 = 10,345.09/x
  3. Step 3: Cross multiply
    31,401.85x = 47,110.98 × 10,345.09
  4. Step 4: Simplify right side
    31,401.85x = 487,367,328.09
  5. Step 5: Solve for x
    x = 487,367,328.09/31,401.85
  6. Step 6: Final answer
    x = 15,520.34

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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.