Home / 31,830.76-47,512.49-29,485

Finding the Fourth Proportional to 31,830.76, 47,512.49 and 29,485

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Solution

The fourth proportional to 31,830.76, 47,512.49 and 29,485 is: 44,011.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,830.76 : 47,512.49 = 29,485 : x
  2. Step 2: Convert to fraction form
    31,830.76/47,512.49 = 29,485/x
  3. Step 3: Cross multiply
    31,830.76x = 47,512.49 × 29,485
  4. Step 4: Simplify right side
    31,830.76x = 1,400,905,767.65
  5. Step 5: Solve for x
    x = 1,400,905,767.65/31,830.76
  6. Step 6: Final answer
    x = 44,011.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.