Home / 28,008.65-38,643.66-16,672.43

Finding the Fourth Proportional to 28,008.65, 38,643.66 and 16,672.43

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Solution

The fourth proportional to 28,008.65, 38,643.66 and 16,672.43 is: 23,003.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.65 : 38,643.66 = 16,672.43 : x
  2. Step 2: Convert to fraction form
    28,008.65/38,643.66 = 16,672.43/x
  3. Step 3: Cross multiply
    28,008.65x = 38,643.66 × 16,672.43
  4. Step 4: Simplify right side
    28,008.65x = 644,283,523.08
  5. Step 5: Solve for x
    x = 644,283,523.08/28,008.65
  6. Step 6: Final answer
    x = 23,003.02

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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.