Home / 21,062.20-31,592.69-8,579.14

Finding the Fourth Proportional to 21,062.20, 31,592.69 and 8,579.14

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Solution

The fourth proportional to 21,062.20, 31,592.69 and 8,579.14 is: 12,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.20 : 31,592.69 = 8,579.14 : x
  2. Step 2: Convert to fraction form
    21,062.20/31,592.69 = 8,579.14/x
  3. Step 3: Cross multiply
    21,062.20x = 31,592.69 × 8,579.14
  4. Step 4: Simplify right side
    21,062.20x = 271,038,110.49
  5. Step 5: Solve for x
    x = 271,038,110.49/21,062.20
  6. Step 6: Final answer
    x = 12,868.46

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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.