Home / 19,941.57-27,518.13-10,988.57

Finding the Fourth Proportional to 19,941.57, 27,518.13 and 10,988.57

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Solution

The fourth proportional to 19,941.57, 27,518.13 and 10,988.57 is: 15,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.57 : 27,518.13 = 10,988.57 : x
  2. Step 2: Convert to fraction form
    19,941.57/27,518.13 = 10,988.57/x
  3. Step 3: Cross multiply
    19,941.57x = 27,518.13 × 10,988.57
  4. Step 4: Simplify right side
    19,941.57x = 302,384,966.57
  5. Step 5: Solve for x
    x = 302,384,966.57/19,941.57
  6. Step 6: Final answer
    x = 15,163.55

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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.