Home / 27,085.72-37,378.14-15,149.08

Finding the Fourth Proportional to 27,085.72, 37,378.14 and 15,149.08

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Solution

The fourth proportional to 27,085.72, 37,378.14 and 15,149.08 is: 20,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,085.72 : 37,378.14 = 15,149.08 : x
  2. Step 2: Convert to fraction form
    27,085.72/37,378.14 = 15,149.08/x
  3. Step 3: Cross multiply
    27,085.72x = 37,378.14 × 15,149.08
  4. Step 4: Simplify right side
    27,085.72x = 566,244,433.11
  5. Step 5: Solve for x
    x = 566,244,433.11/27,085.72
  6. Step 6: Final answer
    x = 20,905.64

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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.