Home / 27,433.75-37,860.20-15,496.78

Finding the Fourth Proportional to 27,433.75, 37,860.20 and 15,496.78

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Solution

The fourth proportional to 27,433.75, 37,860.20 and 15,496.78 is: 21,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,433.75 : 37,860.20 = 15,496.78 : x
  2. Step 2: Convert to fraction form
    27,433.75/37,860.20 = 15,496.78/x
  3. Step 3: Cross multiply
    27,433.75x = 37,860.20 × 15,496.78
  4. Step 4: Simplify right side
    27,433.75x = 586,711,190.16
  5. Step 5: Solve for x
    x = 586,711,190.16/27,433.75
  6. Step 6: Final answer
    x = 21,386.47

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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.