Home / 30,109.14-45,121.62-25,643.58

Finding the Fourth Proportional to 30,109.14, 45,121.62 and 25,643.58

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Solution

The fourth proportional to 30,109.14, 45,121.62 and 25,643.58 is: 38,429.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.14 : 45,121.62 = 25,643.58 : x
  2. Step 2: Convert to fraction form
    30,109.14/45,121.62 = 25,643.58/x
  3. Step 3: Cross multiply
    30,109.14x = 45,121.62 × 25,643.58
  4. Step 4: Simplify right side
    30,109.14x = 1,157,079,872.20
  5. Step 5: Solve for x
    x = 1,157,079,872.20/30,109.14
  6. Step 6: Final answer
    x = 38,429.52

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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.