Home / 31,715.95-47,509.33-15,025.39

Finding the Fourth Proportional to 31,715.95, 47,509.33 and 15,025.39

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Solution

The fourth proportional to 31,715.95, 47,509.33 and 15,025.39 is: 22,507.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,715.95 : 47,509.33 = 15,025.39 : x
  2. Step 2: Convert to fraction form
    31,715.95/47,509.33 = 15,025.39/x
  3. Step 3: Cross multiply
    31,715.95x = 47,509.33 × 15,025.39
  4. Step 4: Simplify right side
    31,715.95x = 713,846,211.89
  5. Step 5: Solve for x
    x = 713,846,211.89/31,715.95
  6. Step 6: Final answer
    x = 22,507.48

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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.