Home / 30,007.20-41,421.60-26,857.92

Finding the Fourth Proportional to 30,007.20, 41,421.60 and 26,857.92

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Solution

The fourth proportional to 30,007.20, 41,421.60 and 26,857.92 is: 37,074.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,007.20 : 41,421.60 = 26,857.92 : x
  2. Step 2: Convert to fraction form
    30,007.20/41,421.60 = 26,857.92/x
  3. Step 3: Cross multiply
    30,007.20x = 41,421.60 × 26,857.92
  4. Step 4: Simplify right side
    30,007.20x = 1,112,498,019.07
  5. Step 5: Solve for x
    x = 1,112,498,019.07/30,007.20
  6. Step 6: Final answer
    x = 37,074.37

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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.