Home / 21,074.24-31,589.40-8,588.84

Finding the Fourth Proportional to 21,074.24, 31,589.40 and 8,588.84

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Solution

The fourth proportional to 21,074.24, 31,589.40 and 8,588.84 is: 12,874.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.24 : 31,589.40 = 8,588.84 : x
  2. Step 2: Convert to fraction form
    21,074.24/31,589.40 = 8,588.84/x
  3. Step 3: Cross multiply
    21,074.24x = 31,589.40 × 8,588.84
  4. Step 4: Simplify right side
    21,074.24x = 271,316,302.30
  5. Step 5: Solve for x
    x = 271,316,302.30/21,074.24
  6. Step 6: Final answer
    x = 12,874.31

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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.