Home / 28,357.23-42,542.18-8,637.32

Finding the Fourth Proportional to 28,357.23, 42,542.18 and 8,637.32

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Solution

The fourth proportional to 28,357.23, 42,542.18 and 8,637.32 is: 12,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.23 : 42,542.18 = 8,637.32 : x
  2. Step 2: Convert to fraction form
    28,357.23/42,542.18 = 8,637.32/x
  3. Step 3: Cross multiply
    28,357.23x = 42,542.18 × 8,637.32
  4. Step 4: Simplify right side
    28,357.23x = 367,450,166.26
  5. Step 5: Solve for x
    x = 367,450,166.26/28,357.23
  6. Step 6: Final answer
    x = 12,957.90

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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.