Home / 19,951.48-27,531.80-10,999.06

Finding the Fourth Proportional to 19,951.48, 27,531.80 and 10,999.06

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Solution

The fourth proportional to 19,951.48, 27,531.80 and 10,999.06 is: 15,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.48 : 27,531.80 = 10,999.06 : x
  2. Step 2: Convert to fraction form
    19,951.48/27,531.80 = 10,999.06/x
  3. Step 3: Cross multiply
    19,951.48x = 27,531.80 × 10,999.06
  4. Step 4: Simplify right side
    19,951.48x = 302,823,920.11
  5. Step 5: Solve for x
    x = 302,823,920.11/19,951.48
  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.