Home / 18,838.36-25,982.52-13,800.76

Finding the Fourth Proportional to 18,838.36, 25,982.52 and 13,800.76

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Solution

The fourth proportional to 18,838.36, 25,982.52 and 13,800.76 is: 19,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.36 : 25,982.52 = 13,800.76 : x
  2. Step 2: Convert to fraction form
    18,838.36/25,982.52 = 13,800.76/x
  3. Step 3: Cross multiply
    18,838.36x = 25,982.52 × 13,800.76
  4. Step 4: Simplify right side
    18,838.36x = 358,578,522.72
  5. Step 5: Solve for x
    x = 358,578,522.72/18,838.36
  6. Step 6: Final answer
    x = 19,034.49

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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.