Home / 31,411.70-47,110.24-9,219.12

Finding the Fourth Proportional to 31,411.70, 47,110.24 and 9,219.12

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Solution

The fourth proportional to 31,411.70, 47,110.24 and 9,219.12 is: 13,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,411.70 : 47,110.24 = 9,219.12 : x
  2. Step 2: Convert to fraction form
    31,411.70/47,110.24 = 9,219.12/x
  3. Step 3: Cross multiply
    31,411.70x = 47,110.24 × 9,219.12
  4. Step 4: Simplify right side
    31,411.70x = 434,314,955.79
  5. Step 5: Solve for x
    x = 434,314,955.79/31,411.70
  6. Step 6: Final answer
    x = 13,826.53

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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.