Home / 27,968.80-38,597.34-15,222.40

Finding the Fourth Proportional to 27,968.80, 38,597.34 and 15,222.40

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Solution

The fourth proportional to 27,968.80, 38,597.34 and 15,222.40 is: 21,007.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,968.80 : 38,597.34 = 15,222.40 : x
  2. Step 2: Convert to fraction form
    27,968.80/38,597.34 = 15,222.40/x
  3. Step 3: Cross multiply
    27,968.80x = 38,597.34 × 15,222.40
  4. Step 4: Simplify right side
    27,968.80x = 587,544,148.42
  5. Step 5: Solve for x
    x = 587,544,148.42/27,968.80
  6. Step 6: Final answer
    x = 21,007.13

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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.