Home / 42,913.92-64,357.60-20,713.44

Finding the Fourth Proportional to 42,913.92, 64,357.60 and 20,713.44

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Solution

The fourth proportional to 42,913.92, 64,357.60 and 20,713.44 is: 31,063.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,913.92 : 64,357.60 = 20,713.44 : x
  2. Step 2: Convert to fraction form
    42,913.92/64,357.60 = 20,713.44/x
  3. Step 3: Cross multiply
    42,913.92x = 64,357.60 × 20,713.44
  4. Step 4: Simplify right side
    42,913.92x = 1,333,067,286.14
  5. Step 5: Solve for x
    x = 1,333,067,286.14/42,913.92
  6. Step 6: Final answer
    x = 31,063.75

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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.