Home / 31,408.70-47,111.79-10,632.20

Finding the Fourth Proportional to 31,408.70, 47,111.79 and 10,632.20

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Solution

The fourth proportional to 31,408.70, 47,111.79 and 10,632.20 is: 15,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,408.70 : 47,111.79 = 10,632.20 : x
  2. Step 2: Convert to fraction form
    31,408.70/47,111.79 = 10,632.20/x
  3. Step 3: Cross multiply
    31,408.70x = 47,111.79 × 10,632.20
  4. Step 4: Simplify right side
    31,408.70x = 500,901,973.64
  5. Step 5: Solve for x
    x = 500,901,973.64/31,408.70
  6. Step 6: Final answer
    x = 15,947.87

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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.