Home / 21,155.17-31,733.34-6,161.70

Finding the Fourth Proportional to 21,155.17, 31,733.34 and 6,161.70

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Solution

The fourth proportional to 21,155.17, 31,733.34 and 6,161.70 is: 9,242.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.17 : 31,733.34 = 6,161.70 : x
  2. Step 2: Convert to fraction form
    21,155.17/31,733.34 = 6,161.70/x
  3. Step 3: Cross multiply
    21,155.17x = 31,733.34 × 6,161.70
  4. Step 4: Simplify right side
    21,155.17x = 195,531,321.08
  5. Step 5: Solve for x
    x = 195,531,321.08/21,155.17
  6. Step 6: Final answer
    x = 9,242.72

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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.