Home / 28,167.33-38,869.41-15,418.05

Finding the Fourth Proportional to 28,167.33, 38,869.41 and 15,418.05

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Solution

The fourth proportional to 28,167.33, 38,869.41 and 15,418.05 is: 21,276.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167.33 : 38,869.41 = 15,418.05 : x
  2. Step 2: Convert to fraction form
    28,167.33/38,869.41 = 15,418.05/x
  3. Step 3: Cross multiply
    28,167.33x = 38,869.41 × 15,418.05
  4. Step 4: Simplify right side
    28,167.33x = 599,290,506.85
  5. Step 5: Solve for x
    x = 599,290,506.85/28,167.33
  6. Step 6: Final answer
    x = 21,276.08

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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.