Home / 31,828.14-47,740.84-9,640.57

Finding the Fourth Proportional to 31,828.14, 47,740.84 and 9,640.57

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Solution

The fourth proportional to 31,828.14, 47,740.84 and 9,640.57 is: 14,460.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,828.14 : 47,740.84 = 9,640.57 : x
  2. Step 2: Convert to fraction form
    31,828.14/47,740.84 = 9,640.57/x
  3. Step 3: Cross multiply
    31,828.14x = 47,740.84 × 9,640.57
  4. Step 4: Simplify right side
    31,828.14x = 460,248,910.17
  5. Step 5: Solve for x
    x = 460,248,910.17/31,828.14
  6. Step 6: Final answer
    x = 14,460.44

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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.