Home / 28,456.47-42,683.09-8,735

Finding the Fourth Proportional to 28,456.47, 42,683.09 and 8,735

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Solution

The fourth proportional to 28,456.47, 42,683.09 and 8,735 is: 13,102.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.47 : 42,683.09 = 8,735 : x
  2. Step 2: Convert to fraction form
    28,456.47/42,683.09 = 8,735/x
  3. Step 3: Cross multiply
    28,456.47x = 42,683.09 × 8,735
  4. Step 4: Simplify right side
    28,456.47x = 372,836,791.15
  5. Step 5: Solve for x
    x = 372,836,791.15/28,456.47
  6. Step 6: Final answer
    x = 13,102.00

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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.