Home / 28,008.29-38,651.37-15,433.04

Finding the Fourth Proportional to 28,008.29, 38,651.37 and 15,433.04

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Solution

The fourth proportional to 28,008.29, 38,651.37 and 15,433.04 is: 21,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.29 : 38,651.37 = 15,433.04 : x
  2. Step 2: Convert to fraction form
    28,008.29/38,651.37 = 15,433.04/x
  3. Step 3: Cross multiply
    28,008.29x = 38,651.37 × 15,433.04
  4. Step 4: Simplify right side
    28,008.29x = 596,508,139.26
  5. Step 5: Solve for x
    x = 596,508,139.26/28,008.29
  6. Step 6: Final answer
    x = 21,297.56

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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.