Home / 21,286.15-31,929.13-6,495.02

Finding the Fourth Proportional to 21,286.15, 31,929.13 and 6,495.02

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Solution

The fourth proportional to 21,286.15, 31,929.13 and 6,495.02 is: 9,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.15 : 31,929.13 = 6,495.02 : x
  2. Step 2: Convert to fraction form
    21,286.15/31,929.13 = 6,495.02/x
  3. Step 3: Cross multiply
    21,286.15x = 31,929.13 × 6,495.02
  4. Step 4: Simplify right side
    21,286.15x = 207,380,337.93
  5. Step 5: Solve for x
    x = 207,380,337.93/21,286.15
  6. Step 6: Final answer
    x = 9,742.50

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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.