Home / 31,538.18-47,295.72-10,474.34

Finding the Fourth Proportional to 31,538.18, 47,295.72 and 10,474.34

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Solution

The fourth proportional to 31,538.18, 47,295.72 and 10,474.34 is: 15,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,538.18 : 47,295.72 = 10,474.34 : x
  2. Step 2: Convert to fraction form
    31,538.18/47,295.72 = 10,474.34/x
  3. Step 3: Cross multiply
    31,538.18x = 47,295.72 × 10,474.34
  4. Step 4: Simplify right side
    31,538.18x = 495,391,215.35
  5. Step 5: Solve for x
    x = 495,391,215.35/31,538.18
  6. Step 6: Final answer
    x = 15,707.67

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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.