Home / 21,554.35-32,319.33-8,391.58

Finding the Fourth Proportional to 21,554.35, 32,319.33 and 8,391.58

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Solution

The fourth proportional to 21,554.35, 32,319.33 and 8,391.58 is: 12,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.35 : 32,319.33 = 8,391.58 : x
  2. Step 2: Convert to fraction form
    21,554.35/32,319.33 = 8,391.58/x
  3. Step 3: Cross multiply
    21,554.35x = 32,319.33 × 8,391.58
  4. Step 4: Simplify right side
    21,554.35x = 271,210,243.24
  5. Step 5: Solve for x
    x = 271,210,243.24/21,554.35
  6. Step 6: Final answer
    x = 12,582.62

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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.