Home / 20,446.84-28,215.90-11,495.18

Finding the Fourth Proportional to 20,446.84, 28,215.90 and 11,495.18

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Solution

The fourth proportional to 20,446.84, 28,215.90 and 11,495.18 is: 15,862.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.84 : 28,215.90 = 11,495.18 : x
  2. Step 2: Convert to fraction form
    20,446.84/28,215.90 = 11,495.18/x
  3. Step 3: Cross multiply
    20,446.84x = 28,215.90 × 11,495.18
  4. Step 4: Simplify right side
    20,446.84x = 324,346,761.19
  5. Step 5: Solve for x
    x = 324,346,761.19/20,446.84
  6. Step 6: Final answer
    x = 15,862.93

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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.