Home / 20,802.16-28,703.66-11,849.84

Finding the Fourth Proportional to 20,802.16, 28,703.66 and 11,849.84

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Solution

The fourth proportional to 20,802.16, 28,703.66 and 11,849.84 is: 16,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.16 : 28,703.66 = 11,849.84 : x
  2. Step 2: Convert to fraction form
    20,802.16/28,703.66 = 11,849.84/x
  3. Step 3: Cross multiply
    20,802.16x = 28,703.66 × 11,849.84
  4. Step 4: Simplify right side
    20,802.16x = 340,133,778.41
  5. Step 5: Solve for x
    x = 340,133,778.41/20,802.16
  6. Step 6: Final answer
    x = 16,350.89

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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.