Home / 27,896.06-38,496.57-15,320.81

Finding the Fourth Proportional to 27,896.06, 38,496.57 and 15,320.81

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Solution

The fourth proportional to 27,896.06, 38,496.57 and 15,320.81 is: 21,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,896.06 : 38,496.57 = 15,320.81 : x
  2. Step 2: Convert to fraction form
    27,896.06/38,496.57 = 15,320.81/x
  3. Step 3: Cross multiply
    27,896.06x = 38,496.57 × 15,320.81
  4. Step 4: Simplify right side
    27,896.06x = 589,798,673.41
  5. Step 5: Solve for x
    x = 589,798,673.41/27,896.06
  6. Step 6: Final answer
    x = 21,142.72

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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.