Home / 30,693.60-45,998.28-15,872.40

Finding the Fourth Proportional to 30,693.60, 45,998.28 and 15,872.40

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Solution

The fourth proportional to 30,693.60, 45,998.28 and 15,872.40 is: 23,786.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,693.60 : 45,998.28 = 15,872.40 : x
  2. Step 2: Convert to fraction form
    30,693.60/45,998.28 = 15,872.40/x
  3. Step 3: Cross multiply
    30,693.60x = 45,998.28 × 15,872.40
  4. Step 4: Simplify right side
    30,693.60x = 730,103,099.47
  5. Step 5: Solve for x
    x = 730,103,099.47/30,693.60
  6. Step 6: Final answer
    x = 23,786.82

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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.