Home / 21,079.17-31,620.51-5,496.75

Finding the Fourth Proportional to 21,079.17, 31,620.51 and 5,496.75

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Solution

The fourth proportional to 21,079.17, 31,620.51 and 5,496.75 is: 8,245.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.17 : 31,620.51 = 5,496.75 : x
  2. Step 2: Convert to fraction form
    21,079.17/31,620.51 = 5,496.75/x
  3. Step 3: Cross multiply
    21,079.17x = 31,620.51 × 5,496.75
  4. Step 4: Simplify right side
    21,079.17x = 173,810,038.34
  5. Step 5: Solve for x
    x = 173,810,038.34/21,079.17
  6. Step 6: Final answer
    x = 8,245.58

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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.