Home / 27,800.05-38,366.80-15,865.18

Finding the Fourth Proportional to 27,800.05, 38,366.80 and 15,865.18

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Solution

The fourth proportional to 27,800.05, 38,366.80 and 15,865.18 is: 21,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,800.05 : 38,366.80 = 15,865.18 : x
  2. Step 2: Convert to fraction form
    27,800.05/38,366.80 = 15,865.18/x
  3. Step 3: Cross multiply
    27,800.05x = 38,366.80 × 15,865.18
  4. Step 4: Simplify right side
    27,800.05x = 608,696,173.33
  5. Step 5: Solve for x
    x = 608,696,173.33/27,800.05
  6. Step 6: Final answer
    x = 21,895.51

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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.