Home / 31,443.14-47,169.40-10,385.41

Finding the Fourth Proportional to 31,443.14, 47,169.40 and 10,385.41

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Solution

The fourth proportional to 31,443.14, 47,169.40 and 10,385.41 is: 15,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,443.14 : 47,169.40 = 10,385.41 : x
  2. Step 2: Convert to fraction form
    31,443.14/47,169.40 = 10,385.41/x
  3. Step 3: Cross multiply
    31,443.14x = 47,169.40 × 10,385.41
  4. Step 4: Simplify right side
    31,443.14x = 489,873,558.45
  5. Step 5: Solve for x
    x = 489,873,558.45/31,443.14
  6. Step 6: Final answer
    x = 15,579.66

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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.