Home / 27,660.06-38,130.62-21,997.08

Finding the Fourth Proportional to 27,660.06, 38,130.62 and 21,997.08

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Solution

The fourth proportional to 27,660.06, 38,130.62 and 21,997.08 is: 30,323.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.06 : 38,130.62 = 21,997.08 : x
  2. Step 2: Convert to fraction form
    27,660.06/38,130.62 = 21,997.08/x
  3. Step 3: Cross multiply
    27,660.06x = 38,130.62 × 21,997.08
  4. Step 4: Simplify right side
    27,660.06x = 838,762,188.60
  5. Step 5: Solve for x
    x = 838,762,188.60/27,660.06
  6. Step 6: Final answer
    x = 30,323.95

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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.