Home / 27,309.19-40,988.19-13,991.25

Finding the Fourth Proportional to 27,309.19, 40,988.19 and 13,991.25

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Solution

The fourth proportional to 27,309.19, 40,988.19 and 13,991.25 is: 20,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.19 : 40,988.19 = 13,991.25 : x
  2. Step 2: Convert to fraction form
    27,309.19/40,988.19 = 13,991.25/x
  3. Step 3: Cross multiply
    27,309.19x = 40,988.19 × 13,991.25
  4. Step 4: Simplify right side
    27,309.19x = 573,475,943.38
  5. Step 5: Solve for x
    x = 573,475,943.38/27,309.19
  6. Step 6: Final answer
    x = 20,999.38

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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.