Home / 30,006.72-41,420.32-18,070.56

Finding the Fourth Proportional to 30,006.72, 41,420.32 and 18,070.56

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Solution

The fourth proportional to 30,006.72, 41,420.32 and 18,070.56 is: 24,944.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,006.72 : 41,420.32 = 18,070.56 : x
  2. Step 2: Convert to fraction form
    30,006.72/41,420.32 = 18,070.56/x
  3. Step 3: Cross multiply
    30,006.72x = 41,420.32 × 18,070.56
  4. Step 4: Simplify right side
    30,006.72x = 748,488,377.78
  5. Step 5: Solve for x
    x = 748,488,377.78/30,006.72
  6. Step 6: Final answer
    x = 24,944.03

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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.