Home / 28,895.25-39,875.45-15,647.25

Finding the Fourth Proportional to 28,895.25, 39,875.45 and 15,647.25

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Solution

The fourth proportional to 28,895.25, 39,875.45 and 15,647.25 is: 21,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,895.25 : 39,875.45 = 15,647.25 : x
  2. Step 2: Convert to fraction form
    28,895.25/39,875.45 = 15,647.25/x
  3. Step 3: Cross multiply
    28,895.25x = 39,875.45 × 15,647.25
  4. Step 4: Simplify right side
    28,895.25x = 623,941,056.78
  5. Step 5: Solve for x
    x = 623,941,056.78/28,895.25
  6. Step 6: Final answer
    x = 21,593.21

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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.