Home / 27,783.11-38,340.39-15,036.02

Finding the Fourth Proportional to 27,783.11, 38,340.39 and 15,036.02

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Solution

The fourth proportional to 27,783.11, 38,340.39 and 15,036.02 is: 20,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.11 : 38,340.39 = 15,036.02 : x
  2. Step 2: Convert to fraction form
    27,783.11/38,340.39 = 15,036.02/x
  3. Step 3: Cross multiply
    27,783.11x = 38,340.39 × 15,036.02
  4. Step 4: Simplify right side
    27,783.11x = 576,486,966.70
  5. Step 5: Solve for x
    x = 576,486,966.70/27,783.11
  6. Step 6: Final answer
    x = 20,749.55

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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.