Home / 42,238.26-63,357.39-18,880.98

Finding the Fourth Proportional to 42,238.26, 63,357.39 and 18,880.98

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Solution

The fourth proportional to 42,238.26, 63,357.39 and 18,880.98 is: 28,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,238.26 : 63,357.39 = 18,880.98 : x
  2. Step 2: Convert to fraction form
    42,238.26/63,357.39 = 18,880.98/x
  3. Step 3: Cross multiply
    42,238.26x = 63,357.39 × 18,880.98
  4. Step 4: Simplify right side
    42,238.26x = 1,196,249,613.44
  5. Step 5: Solve for x
    x = 1,196,249,613.44/42,238.26
  6. Step 6: Final answer
    x = 28,321.47

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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.