Home / 15,958.48-21,974.61-15,023.32

Finding the Fourth Proportional to 15,958.48, 21,974.61 and 15,023.32

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Solution

The fourth proportional to 15,958.48, 21,974.61 and 15,023.32 is: 20,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.48 : 21,974.61 = 15,023.32 : x
  2. Step 2: Convert to fraction form
    15,958.48/21,974.61 = 15,023.32/x
  3. Step 3: Cross multiply
    15,958.48x = 21,974.61 × 15,023.32
  4. Step 4: Simplify right side
    15,958.48x = 330,131,597.91
  5. Step 5: Solve for x
    x = 330,131,597.91/15,958.48
  6. Step 6: Final answer
    x = 20,686.91

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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.