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Finding the Fourth Proportional to 30,404.60, 45,543.72 and 15,568.64

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Solution

The fourth proportional to 30,404.60, 45,543.72 and 15,568.64 is: 23,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.60 : 45,543.72 = 15,568.64 : x
  2. Step 2: Convert to fraction form
    30,404.60/45,543.72 = 15,568.64/x
  3. Step 3: Cross multiply
    30,404.60x = 45,543.72 × 15,568.64
  4. Step 4: Simplify right side
    30,404.60x = 709,053,780.94
  5. Step 5: Solve for x
    x = 709,053,780.94/30,404.60
  6. Step 6: Final answer
    x = 23,320.61

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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.