Home / 27,631.11-38,130.87-15,055.86

Finding the Fourth Proportional to 27,631.11, 38,130.87 and 15,055.86

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Solution

The fourth proportional to 27,631.11, 38,130.87 and 15,055.86 is: 20,777.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.11 : 38,130.87 = 15,055.86 : x
  2. Step 2: Convert to fraction form
    27,631.11/38,130.87 = 15,055.86/x
  3. Step 3: Cross multiply
    27,631.11x = 38,130.87 × 15,055.86
  4. Step 4: Simplify right side
    27,631.11x = 574,093,040.40
  5. Step 5: Solve for x
    x = 574,093,040.40/27,631.11
  6. Step 6: Final answer
    x = 20,777.05

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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.