Home / 21,062.12-31,593.08-8,579.36

Finding the Fourth Proportional to 21,062.12, 31,593.08 and 8,579.36

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Solution

The fourth proportional to 21,062.12, 31,593.08 and 8,579.36 is: 12,869.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.12 : 31,593.08 = 8,579.36 : x
  2. Step 2: Convert to fraction form
    21,062.12/31,593.08 = 8,579.36/x
  3. Step 3: Cross multiply
    21,062.12x = 31,593.08 × 8,579.36
  4. Step 4: Simplify right side
    21,062.12x = 271,048,406.83
  5. Step 5: Solve for x
    x = 271,048,406.83/21,062.12
  6. Step 6: Final answer
    x = 12,869.00

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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.