Home / 28,127.67-42,208.40-11,257.66

Finding the Fourth Proportional to 28,127.67, 42,208.40 and 11,257.66

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Solution

The fourth proportional to 28,127.67, 42,208.40 and 11,257.66 is: 16,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.67 : 42,208.40 = 11,257.66 : x
  2. Step 2: Convert to fraction form
    28,127.67/42,208.40 = 11,257.66/x
  3. Step 3: Cross multiply
    28,127.67x = 42,208.40 × 11,257.66
  4. Step 4: Simplify right side
    28,127.67x = 475,167,816.34
  5. Step 5: Solve for x
    x = 475,167,816.34/28,127.67
  6. Step 6: Final answer
    x = 16,893.25

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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.