Home / 28,125.26-42,187.93-11,485.29

Finding the Fourth Proportional to 28,125.26, 42,187.93 and 11,485.29

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Solution

The fourth proportional to 28,125.26, 42,187.93 and 11,485.29 is: 17,227.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.26 : 42,187.93 = 11,485.29 : x
  2. Step 2: Convert to fraction form
    28,125.26/42,187.93 = 11,485.29/x
  3. Step 3: Cross multiply
    28,125.26x = 42,187.93 × 11,485.29
  4. Step 4: Simplify right side
    28,125.26x = 484,540,658.63
  5. Step 5: Solve for x
    x = 484,540,658.63/28,125.26
  6. Step 6: Final answer
    x = 17,227.95

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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.