Home / 27,215.64-37,555.56-15,280.80

Finding the Fourth Proportional to 27,215.64, 37,555.56 and 15,280.80

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Solution

The fourth proportional to 27,215.64, 37,555.56 and 15,280.80 is: 21,086.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.64 : 37,555.56 = 15,280.80 : x
  2. Step 2: Convert to fraction form
    27,215.64/37,555.56 = 15,280.80/x
  3. Step 3: Cross multiply
    27,215.64x = 37,555.56 × 15,280.80
  4. Step 4: Simplify right side
    27,215.64x = 573,879,001.25
  5. Step 5: Solve for x
    x = 573,879,001.25/27,215.64
  6. Step 6: Final answer
    x = 21,086.37

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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.