Home / 20,376.73-30,545.47-11,136.25

Finding the Fourth Proportional to 20,376.73, 30,545.47 and 11,136.25

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Solution

The fourth proportional to 20,376.73, 30,545.47 and 11,136.25 is: 16,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.73 : 30,545.47 = 11,136.25 : x
  2. Step 2: Convert to fraction form
    20,376.73/30,545.47 = 11,136.25/x
  3. Step 3: Cross multiply
    20,376.73x = 30,545.47 × 11,136.25
  4. Step 4: Simplify right side
    20,376.73x = 340,161,990.29
  5. Step 5: Solve for x
    x = 340,161,990.29/20,376.73
  6. Step 6: Final answer
    x = 16,693.65

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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.