Home / 27,866.52-38,455.56-15,119.72

Finding the Fourth Proportional to 27,866.52, 38,455.56 and 15,119.72

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Solution

The fourth proportional to 27,866.52, 38,455.56 and 15,119.72 is: 20,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.52 : 38,455.56 = 15,119.72 : x
  2. Step 2: Convert to fraction form
    27,866.52/38,455.56 = 15,119.72/x
  3. Step 3: Cross multiply
    27,866.52x = 38,455.56 × 15,119.72
  4. Step 4: Simplify right side
    27,866.52x = 581,437,299.64
  5. Step 5: Solve for x
    x = 581,437,299.64/27,866.52
  6. Step 6: Final answer
    x = 20,865.08

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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.