Home / 30,451.55-45,671.04-11,725.16

Finding the Fourth Proportional to 30,451.55, 45,671.04 and 11,725.16

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Solution

The fourth proportional to 30,451.55, 45,671.04 and 11,725.16 is: 17,585.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.55 : 45,671.04 = 11,725.16 : x
  2. Step 2: Convert to fraction form
    30,451.55/45,671.04 = 11,725.16/x
  3. Step 3: Cross multiply
    30,451.55x = 45,671.04 × 11,725.16
  4. Step 4: Simplify right side
    30,451.55x = 535,500,023.01
  5. Step 5: Solve for x
    x = 535,500,023.01/30,451.55
  6. Step 6: Final answer
    x = 17,585.32

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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.