Home / 19,951.23-27,532.87-10,999.05

Finding the Fourth Proportional to 19,951.23, 27,532.87 and 10,999.05

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Solution

The fourth proportional to 19,951.23, 27,532.87 and 10,999.05 is: 15,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.23 : 27,532.87 = 10,999.05 : x
  2. Step 2: Convert to fraction form
    19,951.23/27,532.87 = 10,999.05/x
  3. Step 3: Cross multiply
    19,951.23x = 27,532.87 × 10,999.05
  4. Step 4: Simplify right side
    19,951.23x = 302,835,391.40
  5. Step 5: Solve for x
    x = 302,835,391.40/19,951.23
  6. Step 6: Final answer
    x = 15,178.78

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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.