Home / 28,490.54-39,262.12-20,092.46

Finding the Fourth Proportional to 28,490.54, 39,262.12 and 20,092.46

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Solution

The fourth proportional to 28,490.54, 39,262.12 and 20,092.46 is: 27,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,490.54 : 39,262.12 = 20,092.46 : x
  2. Step 2: Convert to fraction form
    28,490.54/39,262.12 = 20,092.46/x
  3. Step 3: Cross multiply
    28,490.54x = 39,262.12 × 20,092.46
  4. Step 4: Simplify right side
    28,490.54x = 788,872,329.07
  5. Step 5: Solve for x
    x = 788,872,329.07/28,490.54
  6. Step 6: Final answer
    x = 27,688.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.