Home / 27,389.92-37,823.04-20,664.04

Finding the Fourth Proportional to 27,389.92, 37,823.04 and 20,664.04

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Solution

The fourth proportional to 27,389.92, 37,823.04 and 20,664.04 is: 28,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,389.92 : 37,823.04 = 20,664.04 : x
  2. Step 2: Convert to fraction form
    27,389.92/37,823.04 = 20,664.04/x
  3. Step 3: Cross multiply
    27,389.92x = 37,823.04 × 20,664.04
  4. Step 4: Simplify right side
    27,389.92x = 781,576,811.48
  5. Step 5: Solve for x
    x = 781,576,811.48/27,389.92
  6. Step 6: Final answer
    x = 28,535.20

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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.