Home / 42,913.26-64,379.62-15,211.26

Finding the Fourth Proportional to 42,913.26, 64,379.62 and 15,211.26

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Solution

The fourth proportional to 42,913.26, 64,379.62 and 15,211.26 is: 22,820.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,913.26 : 64,379.62 = 15,211.26 : x
  2. Step 2: Convert to fraction form
    42,913.26/64,379.62 = 15,211.26/x
  3. Step 3: Cross multiply
    42,913.26x = 64,379.62 × 15,211.26
  4. Step 4: Simplify right side
    42,913.26x = 979,295,138.52
  5. Step 5: Solve for x
    x = 979,295,138.52/42,913.26
  6. Step 6: Final answer
    x = 22,820.34

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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.