Home / 30,005.20-41,403.60-16,575.64

Finding the Fourth Proportional to 30,005.20, 41,403.60 and 16,575.64

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Solution

The fourth proportional to 30,005.20, 41,403.60 and 16,575.64 is: 22,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.20 : 41,403.60 = 16,575.64 : x
  2. Step 2: Convert to fraction form
    30,005.20/41,403.60 = 16,575.64/x
  3. Step 3: Cross multiply
    30,005.20x = 41,403.60 × 16,575.64
  4. Step 4: Simplify right side
    30,005.20x = 686,291,168.30
  5. Step 5: Solve for x
    x = 686,291,168.30/30,005.20
  6. Step 6: Final answer
    x = 22,872.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.