Home / 28,537.34-42,812.48-15,389.42

Finding the Fourth Proportional to 28,537.34, 42,812.48 and 15,389.42

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Solution

The fourth proportional to 28,537.34, 42,812.48 and 15,389.42 is: 23,087.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,537.34 : 42,812.48 = 15,389.42 : x
  2. Step 2: Convert to fraction form
    28,537.34/42,812.48 = 15,389.42/x
  3. Step 3: Cross multiply
    28,537.34x = 42,812.48 × 15,389.42
  4. Step 4: Simplify right side
    28,537.34x = 658,859,060.37
  5. Step 5: Solve for x
    x = 658,859,060.37/28,537.34
  6. Step 6: Final answer
    x = 23,087.62

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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.