Home / 27,729.67-38,266.86-15,154.42

Finding the Fourth Proportional to 27,729.67, 38,266.86 and 15,154.42

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Solution

The fourth proportional to 27,729.67, 38,266.86 and 15,154.42 is: 20,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.67 : 38,266.86 = 15,154.42 : x
  2. Step 2: Convert to fraction form
    27,729.67/38,266.86 = 15,154.42/x
  3. Step 3: Cross multiply
    27,729.67x = 38,266.86 × 15,154.42
  4. Step 4: Simplify right side
    27,729.67x = 579,912,068.52
  5. Step 5: Solve for x
    x = 579,912,068.52/27,729.67
  6. Step 6: Final answer
    x = 20,913.05

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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.