Home / 31,920.84-47,903.13-11,144.34

Finding the Fourth Proportional to 31,920.84, 47,903.13 and 11,144.34

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Solution

The fourth proportional to 31,920.84, 47,903.13 and 11,144.34 is: 16,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,920.84 : 47,903.13 = 11,144.34 : x
  2. Step 2: Convert to fraction form
    31,920.84/47,903.13 = 11,144.34/x
  3. Step 3: Cross multiply
    31,920.84x = 47,903.13 × 11,144.34
  4. Step 4: Simplify right side
    31,920.84x = 533,848,767.78
  5. Step 5: Solve for x
    x = 533,848,767.78/31,920.84
  6. Step 6: Final answer
    x = 16,724.15

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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.