Home / 30,285.36-41,799.30-18,358.92

Finding the Fourth Proportional to 30,285.36, 41,799.30 and 18,358.92

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Solution

The fourth proportional to 30,285.36, 41,799.30 and 18,358.92 is: 25,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,285.36 : 41,799.30 = 18,358.92 : x
  2. Step 2: Convert to fraction form
    30,285.36/41,799.30 = 18,358.92/x
  3. Step 3: Cross multiply
    30,285.36x = 41,799.30 × 18,358.92
  4. Step 4: Simplify right side
    30,285.36x = 767,390,004.76
  5. Step 5: Solve for x
    x = 767,390,004.76/30,285.36
  6. Step 6: Final answer
    x = 25,338.65

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Half scale
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Double scale
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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.