Home / 20,446.50-28,215.93-11,495.52

Finding the Fourth Proportional to 20,446.50, 28,215.93 and 11,495.52

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Solution

The fourth proportional to 20,446.50, 28,215.93 and 11,495.52 is: 15,863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.50 : 28,215.93 = 11,495.52 : x
  2. Step 2: Convert to fraction form
    20,446.50/28,215.93 = 11,495.52/x
  3. Step 3: Cross multiply
    20,446.50x = 28,215.93 × 11,495.52
  4. Step 4: Simplify right side
    20,446.50x = 324,356,787.63
  5. Step 5: Solve for x
    x = 324,356,787.63/20,446.50
  6. Step 6: Final answer
    x = 15,863.68

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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.