Home / 20,446.53-28,210.86-11,943.69

Finding the Fourth Proportional to 20,446.53, 28,210.86 and 11,943.69

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Solution

The fourth proportional to 20,446.53, 28,210.86 and 11,943.69 is: 16,479.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.53 : 28,210.86 = 11,943.69 : x
  2. Step 2: Convert to fraction form
    20,446.53/28,210.86 = 11,943.69/x
  3. Step 3: Cross multiply
    20,446.53x = 28,210.86 × 11,943.69
  4. Step 4: Simplify right side
    20,446.53x = 336,941,766.47
  5. Step 5: Solve for x
    x = 336,941,766.47/20,446.53
  6. Step 6: Final answer
    x = 16,479.17

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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.