Home / 19,940.83-27,517.93-10,988.10

Finding the Fourth Proportional to 19,940.83, 27,517.93 and 10,988.10

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Solution

The fourth proportional to 19,940.83, 27,517.93 and 10,988.10 is: 15,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.83 : 27,517.93 = 10,988.10 : x
  2. Step 2: Convert to fraction form
    19,940.83/27,517.93 = 10,988.10/x
  3. Step 3: Cross multiply
    19,940.83x = 27,517.93 × 10,988.10
  4. Step 4: Simplify right side
    19,940.83x = 302,369,739.16
  5. Step 5: Solve for x
    x = 302,369,739.16/19,940.83
  6. Step 6: Final answer
    x = 15,163.35

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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.