Home / 40,238.99-60,390.38-21,277.09

Finding the Fourth Proportional to 40,238.99, 60,390.38 and 21,277.09

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Solution

The fourth proportional to 40,238.99, 60,390.38 and 21,277.09 is: 31,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,238.99 : 60,390.38 = 21,277.09 : x
  2. Step 2: Convert to fraction form
    40,238.99/60,390.38 = 21,277.09/x
  3. Step 3: Cross multiply
    40,238.99x = 60,390.38 × 21,277.09
  4. Step 4: Simplify right side
    40,238.99x = 1,284,931,550.39
  5. Step 5: Solve for x
    x = 1,284,931,550.39/40,238.99
  6. Step 6: Final answer
    x = 31,932.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.