Home / 28,017.64-38,663.79-15,442.39

Finding the Fourth Proportional to 28,017.64, 38,663.79 and 15,442.39

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Solution

The fourth proportional to 28,017.64, 38,663.79 and 15,442.39 is: 21,310.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.64 : 38,663.79 = 15,442.39 : x
  2. Step 2: Convert to fraction form
    28,017.64/38,663.79 = 15,442.39/x
  3. Step 3: Cross multiply
    28,017.64x = 38,663.79 × 15,442.39
  4. Step 4: Simplify right side
    28,017.64x = 597,061,324.06
  5. Step 5: Solve for x
    x = 597,061,324.06/28,017.64
  6. Step 6: Final answer
    x = 21,310.19

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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.