Home / 47,728.82-71,587.67-12,671.20

Finding the Fourth Proportional to 47,728.82, 71,587.67 and 12,671.20

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Solution

The fourth proportional to 47,728.82, 71,587.67 and 12,671.20 is: 19,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,728.82 : 71,587.67 = 12,671.20 : x
  2. Step 2: Convert to fraction form
    47,728.82/71,587.67 = 12,671.20/x
  3. Step 3: Cross multiply
    47,728.82x = 71,587.67 × 12,671.20
  4. Step 4: Simplify right side
    47,728.82x = 907,101,684.10
  5. Step 5: Solve for x
    x = 907,101,684.10/47,728.82
  6. Step 6: Final answer
    x = 19,005.32

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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.