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Finding the Fourth Proportional to 30,506.42, 45,788.52 and 15,725.54

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Solution

The fourth proportional to 30,506.42, 45,788.52 and 15,725.54 is: 23,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,506.42 : 45,788.52 = 15,725.54 : x
  2. Step 2: Convert to fraction form
    30,506.42/45,788.52 = 15,725.54/x
  3. Step 3: Cross multiply
    30,506.42x = 45,788.52 × 15,725.54
  4. Step 4: Simplify right side
    30,506.42x = 720,049,202.80
  5. Step 5: Solve for x
    x = 720,049,202.80/30,506.42
  6. Step 6: Final answer
    x = 23,603.20

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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.