Home / 27,621.66-38,117.07-15,357

Finding the Fourth Proportional to 27,621.66, 38,117.07 and 15,357

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Solution

The fourth proportional to 27,621.66, 38,117.07 and 15,357 is: 21,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.66 : 38,117.07 = 15,357 : x
  2. Step 2: Convert to fraction form
    27,621.66/38,117.07 = 15,357/x
  3. Step 3: Cross multiply
    27,621.66x = 38,117.07 × 15,357
  4. Step 4: Simplify right side
    27,621.66x = 585,363,843.99
  5. Step 5: Solve for x
    x = 585,363,843.99/27,621.66
  6. Step 6: Final answer
    x = 21,192.20

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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.