Home / 30,154.32-41,587.56-19,400.88

Finding the Fourth Proportional to 30,154.32, 41,587.56 and 19,400.88

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Solution

The fourth proportional to 30,154.32, 41,587.56 and 19,400.88 is: 26,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.32 : 41,587.56 = 19,400.88 : x
  2. Step 2: Convert to fraction form
    30,154.32/41,587.56 = 19,400.88/x
  3. Step 3: Cross multiply
    30,154.32x = 41,587.56 × 19,400.88
  4. Step 4: Simplify right side
    30,154.32x = 806,835,261.05
  5. Step 5: Solve for x
    x = 806,835,261.05/30,154.32
  6. Step 6: Final answer
    x = 26,756.87

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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.