Home / 28,357.17-42,542.11-8,637.27

Finding the Fourth Proportional to 28,357.17, 42,542.11 and 8,637.27

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Solution

The fourth proportional to 28,357.17, 42,542.11 and 8,637.27 is: 12,957.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.17 : 42,542.11 = 8,637.27 : x
  2. Step 2: Convert to fraction form
    28,357.17/42,542.11 = 8,637.27/x
  3. Step 3: Cross multiply
    28,357.17x = 42,542.11 × 8,637.27
  4. Step 4: Simplify right side
    28,357.17x = 367,447,647.25
  5. Step 5: Solve for x
    x = 367,447,647.25/28,357.17
  6. Step 6: Final answer
    x = 12,957.84

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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.