Home / 19,950.91-27,531.90-10,999.26

Finding the Fourth Proportional to 19,950.91, 27,531.90 and 10,999.26

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Solution

The fourth proportional to 19,950.91, 27,531.90 and 10,999.26 is: 15,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.91 : 27,531.90 = 10,999.26 : x
  2. Step 2: Convert to fraction form
    19,950.91/27,531.90 = 10,999.26/x
  3. Step 3: Cross multiply
    19,950.91x = 27,531.90 × 10,999.26
  4. Step 4: Simplify right side
    19,950.91x = 302,830,526.39
  5. Step 5: Solve for x
    x = 302,830,526.39/19,950.91
  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.