Home / 29,138.50-43,715.43-10,420.39

Finding the Fourth Proportional to 29,138.50, 43,715.43 and 10,420.39

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Solution

The fourth proportional to 29,138.50, 43,715.43 and 10,420.39 is: 15,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.50 : 43,715.43 = 10,420.39 : x
  2. Step 2: Convert to fraction form
    29,138.50/43,715.43 = 10,420.39/x
  3. Step 3: Cross multiply
    29,138.50x = 43,715.43 × 10,420.39
  4. Step 4: Simplify right side
    29,138.50x = 455,531,829.62
  5. Step 5: Solve for x
    x = 455,531,829.62/29,138.50
  6. Step 6: Final answer
    x = 15,633.33

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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.