Home / 19,951.50-27,531.78-10,999.08

Finding the Fourth Proportional to 19,951.50, 27,531.78 and 10,999.08

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Solution

The fourth proportional to 19,951.50, 27,531.78 and 10,999.08 is: 15,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.50 : 27,531.78 = 10,999.08 : x
  2. Step 2: Convert to fraction form
    19,951.50/27,531.78 = 10,999.08/x
  3. Step 3: Cross multiply
    19,951.50x = 27,531.78 × 10,999.08
  4. Step 4: Simplify right side
    19,951.50x = 302,824,250.76
  5. Step 5: Solve for x
    x = 302,824,250.76/19,951.50
  6. Step 6: Final answer
    x = 15,178.02

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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.