Home / 28,146.43-38,825.15-18,586.41

Finding the Fourth Proportional to 28,146.43, 38,825.15 and 18,586.41

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Solution

The fourth proportional to 28,146.43, 38,825.15 and 18,586.41 is: 25,638.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.43 : 38,825.15 = 18,586.41 : x
  2. Step 2: Convert to fraction form
    28,146.43/38,825.15 = 18,586.41/x
  3. Step 3: Cross multiply
    28,146.43x = 38,825.15 × 18,586.41
  4. Step 4: Simplify right side
    28,146.43x = 721,620,156.21
  5. Step 5: Solve for x
    x = 721,620,156.21/28,146.43
  6. Step 6: Final answer
    x = 25,638.07

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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.