Home / 30,359.78-45,545.16-13,727.65

Finding the Fourth Proportional to 30,359.78, 45,545.16 and 13,727.65

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Solution

The fourth proportional to 30,359.78, 45,545.16 and 13,727.65 is: 20,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.78 : 45,545.16 = 13,727.65 : x
  2. Step 2: Convert to fraction form
    30,359.78/45,545.16 = 13,727.65/x
  3. Step 3: Cross multiply
    30,359.78x = 45,545.16 × 13,727.65
  4. Step 4: Simplify right side
    30,359.78x = 625,228,015.67
  5. Step 5: Solve for x
    x = 625,228,015.67/30,359.78
  6. Step 6: Final answer
    x = 20,593.96

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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.