Home / 25,643.80-38,400.90-16,255.24

Finding the Fourth Proportional to 25,643.80, 38,400.90 and 16,255.24

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Solution

The fourth proportional to 25,643.80, 38,400.90 and 16,255.24 is: 24,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,643.80 : 38,400.90 = 16,255.24 : x
  2. Step 2: Convert to fraction form
    25,643.80/38,400.90 = 16,255.24/x
  3. Step 3: Cross multiply
    25,643.80x = 38,400.90 × 16,255.24
  4. Step 4: Simplify right side
    25,643.80x = 624,215,845.72
  5. Step 5: Solve for x
    x = 624,215,845.72/25,643.80
  6. Step 6: Final answer
    x = 24,341.78

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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.