Home / 31,377.43-47,088.83-18,212.23

Finding the Fourth Proportional to 31,377.43, 47,088.83 and 18,212.23

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Solution

The fourth proportional to 31,377.43, 47,088.83 and 18,212.23 is: 27,331.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,377.43 : 47,088.83 = 18,212.23 : x
  2. Step 2: Convert to fraction form
    31,377.43/47,088.83 = 18,212.23/x
  3. Step 3: Cross multiply
    31,377.43x = 47,088.83 × 18,212.23
  4. Step 4: Simplify right side
    31,377.43x = 857,592,602.39
  5. Step 5: Solve for x
    x = 857,592,602.39/31,377.43
  6. Step 6: Final answer
    x = 27,331.51

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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.