Home / 31,889.19-47,824.05-8,512.59

Finding the Fourth Proportional to 31,889.19, 47,824.05 and 8,512.59

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Solution

The fourth proportional to 31,889.19, 47,824.05 and 8,512.59 is: 12,766.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,889.19 : 47,824.05 = 8,512.59 : x
  2. Step 2: Convert to fraction form
    31,889.19/47,824.05 = 8,512.59/x
  3. Step 3: Cross multiply
    31,889.19x = 47,824.05 × 8,512.59
  4. Step 4: Simplify right side
    31,889.19x = 407,106,529.79
  5. Step 5: Solve for x
    x = 407,106,529.79/31,889.19
  6. Step 6: Final answer
    x = 12,766.29

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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.