Home / 31,478.22-47,202.27-18,334.34

Finding the Fourth Proportional to 31,478.22, 47,202.27 and 18,334.34

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Solution

The fourth proportional to 31,478.22, 47,202.27 and 18,334.34 is: 27,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.22 : 47,202.27 = 18,334.34 : x
  2. Step 2: Convert to fraction form
    31,478.22/47,202.27 = 18,334.34/x
  3. Step 3: Cross multiply
    31,478.22x = 47,202.27 × 18,334.34
  4. Step 4: Simplify right side
    31,478.22x = 865,422,466.95
  5. Step 5: Solve for x
    x = 865,422,466.95/31,478.22
  6. Step 6: Final answer
    x = 27,492.74

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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.