Home / 28,139.20-42,186.91-14,092.01

Finding the Fourth Proportional to 28,139.20, 42,186.91 and 14,092.01

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Solution

The fourth proportional to 28,139.20, 42,186.91 and 14,092.01 is: 21,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.20 : 42,186.91 = 14,092.01 : x
  2. Step 2: Convert to fraction form
    28,139.20/42,186.91 = 14,092.01/x
  3. Step 3: Cross multiply
    28,139.20x = 42,186.91 × 14,092.01
  4. Step 4: Simplify right side
    28,139.20x = 594,498,357.59
  5. Step 5: Solve for x
    x = 594,498,357.59/28,139.20
  6. Step 6: Final answer
    x = 21,127.05

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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.