Home / 18,042.60-27,015.30-13,085.40

Finding the Fourth Proportional to 18,042.60, 27,015.30 and 13,085.40

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Solution

The fourth proportional to 18,042.60, 27,015.30 and 13,085.40 is: 19,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042.60 : 27,015.30 = 13,085.40 : x
  2. Step 2: Convert to fraction form
    18,042.60/27,015.30 = 13,085.40/x
  3. Step 3: Cross multiply
    18,042.60x = 27,015.30 × 13,085.40
  4. Step 4: Simplify right side
    18,042.60x = 353,506,006.62
  5. Step 5: Solve for x
    x = 353,506,006.62/18,042.60
  6. Step 6: Final answer
    x = 19,592.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.