Home / 19,943.26-27,521.56-10,990.77

Finding the Fourth Proportional to 19,943.26, 27,521.56 and 10,990.77

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Solution

The fourth proportional to 19,943.26, 27,521.56 and 10,990.77 is: 15,167.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.26 : 27,521.56 = 10,990.77 : x
  2. Step 2: Convert to fraction form
    19,943.26/27,521.56 = 10,990.77/x
  3. Step 3: Cross multiply
    19,943.26x = 27,521.56 × 10,990.77
  4. Step 4: Simplify right side
    19,943.26x = 302,483,136.00
  5. Step 5: Solve for x
    x = 302,483,136.00/19,943.26
  6. Step 6: Final answer
    x = 15,167.19

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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.