Home / 27,818.75-38,389.88-16,640.75

Finding the Fourth Proportional to 27,818.75, 38,389.88 and 16,640.75

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Solution

The fourth proportional to 27,818.75, 38,389.88 and 16,640.75 is: 22,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.75 : 38,389.88 = 16,640.75 : x
  2. Step 2: Convert to fraction form
    27,818.75/38,389.88 = 16,640.75/x
  3. Step 3: Cross multiply
    27,818.75x = 38,389.88 × 16,640.75
  4. Step 4: Simplify right side
    27,818.75x = 638,836,395.61
  5. Step 5: Solve for x
    x = 638,836,395.61/27,818.75
  6. Step 6: Final answer
    x = 22,964.24

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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.