Home / 20,083.95-30,127.49-5,292.70

Finding the Fourth Proportional to 20,083.95, 30,127.49 and 5,292.70

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Solution

The fourth proportional to 20,083.95, 30,127.49 and 5,292.70 is: 7,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.95 : 30,127.49 = 5,292.70 : x
  2. Step 2: Convert to fraction form
    20,083.95/30,127.49 = 5,292.70/x
  3. Step 3: Cross multiply
    20,083.95x = 30,127.49 × 5,292.70
  4. Step 4: Simplify right side
    20,083.95x = 159,455,766.32
  5. Step 5: Solve for x
    x = 159,455,766.32/20,083.95
  6. Step 6: Final answer
    x = 7,939.46

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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.