Home / 19,950.76-27,531.90-10,998.28

Finding the Fourth Proportional to 19,950.76, 27,531.90 and 10,998.28

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Solution

The fourth proportional to 19,950.76, 27,531.90 and 10,998.28 is: 15,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.76 : 27,531.90 = 10,998.28 : x
  2. Step 2: Convert to fraction form
    19,950.76/27,531.90 = 10,998.28/x
  3. Step 3: Cross multiply
    19,950.76x = 27,531.90 × 10,998.28
  4. Step 4: Simplify right side
    19,950.76x = 302,803,545.13
  5. Step 5: Solve for x
    x = 302,803,545.13/19,950.76
  6. Step 6: Final answer
    x = 15,177.54

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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.