Home / 19,943.56-27,521.69-10,990.83

Finding the Fourth Proportional to 19,943.56, 27,521.69 and 10,990.83

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Solution

The fourth proportional to 19,943.56, 27,521.69 and 10,990.83 is: 15,167.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.56 : 27,521.69 = 10,990.83 : x
  2. Step 2: Convert to fraction form
    19,943.56/27,521.69 = 10,990.83/x
  3. Step 3: Cross multiply
    19,943.56x = 27,521.69 × 10,990.83
  4. Step 4: Simplify right side
    19,943.56x = 302,486,243.58
  5. Step 5: Solve for x
    x = 302,486,243.58/19,943.56
  6. Step 6: Final answer
    x = 15,167.12

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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.