Home / 28,500.64-39,321.25-16,554.15

Finding the Fourth Proportional to 28,500.64, 39,321.25 and 16,554.15

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Solution

The fourth proportional to 28,500.64, 39,321.25 and 16,554.15 is: 22,839.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.64 : 39,321.25 = 16,554.15 : x
  2. Step 2: Convert to fraction form
    28,500.64/39,321.25 = 16,554.15/x
  3. Step 3: Cross multiply
    28,500.64x = 39,321.25 × 16,554.15
  4. Step 4: Simplify right side
    28,500.64x = 650,929,870.69
  5. Step 5: Solve for x
    x = 650,929,870.69/28,500.64
  6. Step 6: Final answer
    x = 22,839.13

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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.