Home / 27,315.60-37,694.70-15,378.24

Finding the Fourth Proportional to 27,315.60, 37,694.70 and 15,378.24

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Solution

The fourth proportional to 27,315.60, 37,694.70 and 15,378.24 is: 21,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,315.60 : 37,694.70 = 15,378.24 : x
  2. Step 2: Convert to fraction form
    27,315.60/37,694.70 = 15,378.24/x
  3. Step 3: Cross multiply
    27,315.60x = 37,694.70 × 15,378.24
  4. Step 4: Simplify right side
    27,315.60x = 579,678,143.33
  5. Step 5: Solve for x
    x = 579,678,143.33/27,315.60
  6. Step 6: Final answer
    x = 21,221.51

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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.