Home / 42,851.96-64,284.06-13,272.44

Finding the Fourth Proportional to 42,851.96, 64,284.06 and 13,272.44

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Solution

The fourth proportional to 42,851.96, 64,284.06 and 13,272.44 is: 19,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,851.96 : 64,284.06 = 13,272.44 : x
  2. Step 2: Convert to fraction form
    42,851.96/64,284.06 = 13,272.44/x
  3. Step 3: Cross multiply
    42,851.96x = 64,284.06 × 13,272.44
  4. Step 4: Simplify right side
    42,851.96x = 853,206,329.31
  5. Step 5: Solve for x
    x = 853,206,329.31/42,851.96
  6. Step 6: Final answer
    x = 19,910.56

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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.