Home / 28,435.02-39,241.17-15,859.50

Finding the Fourth Proportional to 28,435.02, 39,241.17 and 15,859.50

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Solution

The fourth proportional to 28,435.02, 39,241.17 and 15,859.50 is: 21,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.02 : 39,241.17 = 15,859.50 : x
  2. Step 2: Convert to fraction form
    28,435.02/39,241.17 = 15,859.50/x
  3. Step 3: Cross multiply
    28,435.02x = 39,241.17 × 15,859.50
  4. Step 4: Simplify right side
    28,435.02x = 622,345,335.62
  5. Step 5: Solve for x
    x = 622,345,335.62/28,435.02
  6. Step 6: Final answer
    x = 21,886.58

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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.