Home / 19,938.88-27,515.50-10,986.18

Finding the Fourth Proportional to 19,938.88, 27,515.50 and 10,986.18

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Solution

The fourth proportional to 19,938.88, 27,515.50 and 10,986.18 is: 15,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.88 : 27,515.50 = 10,986.18 : x
  2. Step 2: Convert to fraction form
    19,938.88/27,515.50 = 10,986.18/x
  3. Step 3: Cross multiply
    19,938.88x = 27,515.50 × 10,986.18
  4. Step 4: Simplify right side
    19,938.88x = 302,290,235.79
  5. Step 5: Solve for x
    x = 302,290,235.79/19,938.88
  6. Step 6: Final answer
    x = 15,160.84

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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.