Home / 27,019.78-37,280.72-15,839.62

Finding the Fourth Proportional to 27,019.78, 37,280.72 and 15,839.62

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Solution

The fourth proportional to 27,019.78, 37,280.72 and 15,839.62 is: 21,854.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,019.78 : 37,280.72 = 15,839.62 : x
  2. Step 2: Convert to fraction form
    27,019.78/37,280.72 = 15,839.62/x
  3. Step 3: Cross multiply
    27,019.78x = 37,280.72 × 15,839.62
  4. Step 4: Simplify right side
    27,019.78x = 590,512,438.13
  5. Step 5: Solve for x
    x = 590,512,438.13/27,019.78
  6. Step 6: Final answer
    x = 21,854.82

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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.