Home / 27,798.12-38,359.98-15,220.44

Finding the Fourth Proportional to 27,798.12, 38,359.98 and 15,220.44

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Solution

The fourth proportional to 27,798.12, 38,359.98 and 15,220.44 is: 21,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,798.12 : 38,359.98 = 15,220.44 : x
  2. Step 2: Convert to fraction form
    27,798.12/38,359.98 = 15,220.44/x
  3. Step 3: Cross multiply
    27,798.12x = 38,359.98 × 15,220.44
  4. Step 4: Simplify right side
    27,798.12x = 583,855,773.99
  5. Step 5: Solve for x
    x = 583,855,773.99/27,798.12
  6. Step 6: Final answer
    x = 21,003.43

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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.