Home / 19,941.87-27,521.36-10,990.98

Finding the Fourth Proportional to 19,941.87, 27,521.36 and 10,990.98

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Solution

The fourth proportional to 19,941.87, 27,521.36 and 10,990.98 is: 15,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.87 : 27,521.36 = 10,990.98 : x
  2. Step 2: Convert to fraction form
    19,941.87/27,521.36 = 10,990.98/x
  3. Step 3: Cross multiply
    19,941.87x = 27,521.36 × 10,990.98
  4. Step 4: Simplify right side
    19,941.87x = 302,486,662.38
  5. Step 5: Solve for x
    x = 302,486,662.38/19,941.87
  6. Step 6: Final answer
    x = 15,168.42

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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.