Home / 30,067.40-41,527.28-20,490.77

Finding the Fourth Proportional to 30,067.40, 41,527.28 and 20,490.77

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Solution

The fourth proportional to 30,067.40, 41,527.28 and 20,490.77 is: 28,300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,067.40 : 41,527.28 = 20,490.77 : x
  2. Step 2: Convert to fraction form
    30,067.40/41,527.28 = 20,490.77/x
  3. Step 3: Cross multiply
    30,067.40x = 41,527.28 × 20,490.77
  4. Step 4: Simplify right side
    30,067.40x = 850,926,098.25
  5. Step 5: Solve for x
    x = 850,926,098.25/30,067.40
  6. Step 6: Final answer
    x = 28,300.62

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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.