Home / 27,988.06-41,989.38-12,402.04

Finding the Fourth Proportional to 27,988.06, 41,989.38 and 12,402.04

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Solution

The fourth proportional to 27,988.06, 41,989.38 and 12,402.04 is: 18,606.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.06 : 41,989.38 = 12,402.04 : x
  2. Step 2: Convert to fraction form
    27,988.06/41,989.38 = 12,402.04/x
  3. Step 3: Cross multiply
    27,988.06x = 41,989.38 × 12,402.04
  4. Step 4: Simplify right side
    27,988.06x = 520,753,970.34
  5. Step 5: Solve for x
    x = 520,753,970.34/27,988.06
  6. Step 6: Final answer
    x = 18,606.29

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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.