Home / 25,605.52-38,346.36-21,190.48

Finding the Fourth Proportional to 25,605.52, 38,346.36 and 21,190.48

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Solution

The fourth proportional to 25,605.52, 38,346.36 and 21,190.48 is: 31,734.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,605.52 : 38,346.36 = 21,190.48 : x
  2. Step 2: Convert to fraction form
    25,605.52/38,346.36 = 21,190.48/x
  3. Step 3: Cross multiply
    25,605.52x = 38,346.36 × 21,190.48
  4. Step 4: Simplify right side
    25,605.52x = 812,577,774.65
  5. Step 5: Solve for x
    x = 812,577,774.65/25,605.52
  6. Step 6: Final answer
    x = 31,734.48

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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.