Home / 28,788.68-39,729.84-16,213.16

Finding the Fourth Proportional to 28,788.68, 39,729.84 and 16,213.16

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Solution

The fourth proportional to 28,788.68, 39,729.84 and 16,213.16 is: 22,374.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.68 : 39,729.84 = 16,213.16 : x
  2. Step 2: Convert to fraction form
    28,788.68/39,729.84 = 16,213.16/x
  3. Step 3: Cross multiply
    28,788.68x = 39,729.84 × 16,213.16
  4. Step 4: Simplify right side
    28,788.68x = 644,146,252.69
  5. Step 5: Solve for x
    x = 644,146,252.69/28,788.68
  6. Step 6: Final answer
    x = 22,374.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.