Home / 15,572.80-23,345.30-5,709.78

Finding the Fourth Proportional to 15,572.80, 23,345.30 and 5,709.78

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Solution

The fourth proportional to 15,572.80, 23,345.30 and 5,709.78 is: 8,559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.80 : 23,345.30 = 5,709.78 : x
  2. Step 2: Convert to fraction form
    15,572.80/23,345.30 = 5,709.78/x
  3. Step 3: Cross multiply
    15,572.80x = 23,345.30 × 5,709.78
  4. Step 4: Simplify right side
    15,572.80x = 133,296,527.03
  5. Step 5: Solve for x
    x = 133,296,527.03/15,572.80
  6. Step 6: Final answer
    x = 8,559.57

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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.