Home / 31,351.15-47,026.17-12,630.67

Finding the Fourth Proportional to 31,351.15, 47,026.17 and 12,630.67

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Solution

The fourth proportional to 31,351.15, 47,026.17 and 12,630.67 is: 18,945.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,351.15 : 47,026.17 = 12,630.67 : x
  2. Step 2: Convert to fraction form
    31,351.15/47,026.17 = 12,630.67/x
  3. Step 3: Cross multiply
    31,351.15x = 47,026.17 × 12,630.67
  4. Step 4: Simplify right side
    31,351.15x = 593,971,917.07
  5. Step 5: Solve for x
    x = 593,971,917.07/31,351.15
  6. Step 6: Final answer
    x = 18,945.78

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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.