Home / 27,688.01-38,209.41-15,112.76

Finding the Fourth Proportional to 27,688.01, 38,209.41 and 15,112.76

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Solution

The fourth proportional to 27,688.01, 38,209.41 and 15,112.76 is: 20,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.01 : 38,209.41 = 15,112.76 : x
  2. Step 2: Convert to fraction form
    27,688.01/38,209.41 = 15,112.76/x
  3. Step 3: Cross multiply
    27,688.01x = 38,209.41 × 15,112.76
  4. Step 4: Simplify right side
    27,688.01x = 577,449,452.02
  5. Step 5: Solve for x
    x = 577,449,452.02/27,688.01
  6. Step 6: Final answer
    x = 20,855.58

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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.