Home / 27,387.63-37,786.10-21,626.80

Finding the Fourth Proportional to 27,387.63, 37,786.10 and 21,626.80

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Solution

The fourth proportional to 27,387.63, 37,786.10 and 21,626.80 is: 29,838.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,387.63 : 37,786.10 = 21,626.80 : x
  2. Step 2: Convert to fraction form
    27,387.63/37,786.10 = 21,626.80/x
  3. Step 3: Cross multiply
    27,387.63x = 37,786.10 × 21,626.80
  4. Step 4: Simplify right side
    27,387.63x = 817,192,224.88
  5. Step 5: Solve for x
    x = 817,192,224.88/27,387.63
  6. Step 6: Final answer
    x = 29,838.00

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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.