Home / 31,821.18-47,734.16-9,636.34

Finding the Fourth Proportional to 31,821.18, 47,734.16 and 9,636.34

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Solution

The fourth proportional to 31,821.18, 47,734.16 and 9,636.34 is: 14,455.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.18 : 47,734.16 = 9,636.34 : x
  2. Step 2: Convert to fraction form
    31,821.18/47,734.16 = 9,636.34/x
  3. Step 3: Cross multiply
    31,821.18x = 47,734.16 × 9,636.34
  4. Step 4: Simplify right side
    31,821.18x = 459,982,595.37
  5. Step 5: Solve for x
    x = 459,982,595.37/31,821.18
  6. Step 6: Final answer
    x = 14,455.23

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1.5x scale

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.