Home / 28,166.40-38,887.68-17,570.56

Finding the Fourth Proportional to 28,166.40, 38,887.68 and 17,570.56

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Solution

The fourth proportional to 28,166.40, 38,887.68 and 17,570.56 is: 24,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.40 : 38,887.68 = 17,570.56 : x
  2. Step 2: Convert to fraction form
    28,166.40/38,887.68 = 17,570.56/x
  3. Step 3: Cross multiply
    28,166.40x = 38,887.68 × 17,570.56
  4. Step 4: Simplify right side
    28,166.40x = 683,278,314.70
  5. Step 5: Solve for x
    x = 683,278,314.70/28,166.40
  6. Step 6: Final answer
    x = 24,258.63

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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.