Home / 27,729.46-38,266.59-15,154.30

Finding the Fourth Proportional to 27,729.46, 38,266.59 and 15,154.30

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Solution

The fourth proportional to 27,729.46, 38,266.59 and 15,154.30 is: 20,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.46 : 38,266.59 = 15,154.30 : x
  2. Step 2: Convert to fraction form
    27,729.46/38,266.59 = 15,154.30/x
  3. Step 3: Cross multiply
    27,729.46x = 38,266.59 × 15,154.30
  4. Step 4: Simplify right side
    27,729.46x = 579,903,384.84
  5. Step 5: Solve for x
    x = 579,903,384.84/27,729.46
  6. Step 6: Final answer
    x = 20,912.90

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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.