Home / 28,166.97-38,872.40-15,592.53

Finding the Fourth Proportional to 28,166.97, 38,872.40 and 15,592.53

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Solution

The fourth proportional to 28,166.97, 38,872.40 and 15,592.53 is: 21,518.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.97 : 38,872.40 = 15,592.53 : x
  2. Step 2: Convert to fraction form
    28,166.97/38,872.40 = 15,592.53/x
  3. Step 3: Cross multiply
    28,166.97x = 38,872.40 × 15,592.53
  4. Step 4: Simplify right side
    28,166.97x = 606,118,985.21
  5. Step 5: Solve for x
    x = 606,118,985.21/28,166.97
  6. Step 6: Final answer
    x = 21,518.79

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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.