Home / 30,833.36-42,545.49-18,081.72

Finding the Fourth Proportional to 30,833.36, 42,545.49 and 18,081.72

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Solution

The fourth proportional to 30,833.36, 42,545.49 and 18,081.72 is: 24,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,833.36 : 42,545.49 = 18,081.72 : x
  2. Step 2: Convert to fraction form
    30,833.36/42,545.49 = 18,081.72/x
  3. Step 3: Cross multiply
    30,833.36x = 42,545.49 × 18,081.72
  4. Step 4: Simplify right side
    30,833.36x = 769,295,637.44
  5. Step 5: Solve for x
    x = 769,295,637.44/30,833.36
  6. Step 6: Final answer
    x = 24,950.11

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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.