Home / 27,186.65-37,515.63-15,087.78

Finding the Fourth Proportional to 27,186.65, 37,515.63 and 15,087.78

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Solution

The fourth proportional to 27,186.65, 37,515.63 and 15,087.78 is: 20,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,186.65 : 37,515.63 = 15,087.78 : x
  2. Step 2: Convert to fraction form
    27,186.65/37,515.63 = 15,087.78/x
  3. Step 3: Cross multiply
    27,186.65x = 37,515.63 × 15,087.78
  4. Step 4: Simplify right side
    27,186.65x = 566,027,572.00
  5. Step 5: Solve for x
    x = 566,027,572.00/27,186.65
  6. Step 6: Final answer
    x = 20,820.06

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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.