Home / 28,286.31-39,035.02-15,539.47

Finding the Fourth Proportional to 28,286.31, 39,035.02 and 15,539.47

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Solution

The fourth proportional to 28,286.31, 39,035.02 and 15,539.47 is: 21,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.31 : 39,035.02 = 15,539.47 : x
  2. Step 2: Convert to fraction form
    28,286.31/39,035.02 = 15,539.47/x
  3. Step 3: Cross multiply
    28,286.31x = 39,035.02 × 15,539.47
  4. Step 4: Simplify right side
    28,286.31x = 606,583,522.24
  5. Step 5: Solve for x
    x = 606,583,522.24/28,286.31
  6. Step 6: Final answer
    x = 21,444.42

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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.