Home / 27,720.18-38,253.84-15,144.93

Finding the Fourth Proportional to 27,720.18, 38,253.84 and 15,144.93

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Solution

The fourth proportional to 27,720.18, 38,253.84 and 15,144.93 is: 20,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.18 : 38,253.84 = 15,144.93 : x
  2. Step 2: Convert to fraction form
    27,720.18/38,253.84 = 15,144.93/x
  3. Step 3: Cross multiply
    27,720.18x = 38,253.84 × 15,144.93
  4. Step 4: Simplify right side
    27,720.18x = 579,351,729.03
  5. Step 5: Solve for x
    x = 579,351,729.03/27,720.18
  6. Step 6: Final answer
    x = 20,900.00

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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.