Home / 20,543.14-30,814.79-4,960.77

Finding the Fourth Proportional to 20,543.14, 30,814.79 and 4,960.77

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Solution

The fourth proportional to 20,543.14, 30,814.79 and 4,960.77 is: 7,441.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.14 : 30,814.79 = 4,960.77 : x
  2. Step 2: Convert to fraction form
    20,543.14/30,814.79 = 4,960.77/x
  3. Step 3: Cross multiply
    20,543.14x = 30,814.79 × 4,960.77
  4. Step 4: Simplify right side
    20,543.14x = 152,865,085.79
  5. Step 5: Solve for x
    x = 152,865,085.79/20,543.14
  6. Step 6: Final answer
    x = 7,441.17

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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.