Home / 21,155.14-31,733.58-17,450.47

Finding the Fourth Proportional to 21,155.14, 31,733.58 and 17,450.47

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Solution

The fourth proportional to 21,155.14, 31,733.58 and 17,450.47 is: 26,176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.14 : 31,733.58 = 17,450.47 : x
  2. Step 2: Convert to fraction form
    21,155.14/31,733.58 = 17,450.47/x
  3. Step 3: Cross multiply
    21,155.14x = 31,733.58 × 17,450.47
  4. Step 4: Simplify right side
    21,155.14x = 553,765,763.31
  5. Step 5: Solve for x
    x = 553,765,763.31/21,155.14
  6. Step 6: Final answer
    x = 26,176.42

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1.5x scale

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.