Home / 27,090.39-37,369.69-15,758.61

Finding the Fourth Proportional to 27,090.39, 37,369.69 and 15,758.61

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Solution

The fourth proportional to 27,090.39, 37,369.69 and 15,758.61 is: 21,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,090.39 : 37,369.69 = 15,758.61 : x
  2. Step 2: Convert to fraction form
    27,090.39/37,369.69 = 15,758.61/x
  3. Step 3: Cross multiply
    27,090.39x = 37,369.69 × 15,758.61
  4. Step 4: Simplify right side
    27,090.39x = 588,894,370.53
  5. Step 5: Solve for x
    x = 588,894,370.53/27,090.39
  6. Step 6: Final answer
    x = 21,738.13

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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.