Home / 47,750.54-71,625.74-12,690.20

Finding the Fourth Proportional to 47,750.54, 71,625.74 and 12,690.20

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Solution

The fourth proportional to 47,750.54, 71,625.74 and 12,690.20 is: 19,035.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,750.54 : 71,625.74 = 12,690.20 : x
  2. Step 2: Convert to fraction form
    47,750.54/71,625.74 = 12,690.20/x
  3. Step 3: Cross multiply
    47,750.54x = 71,625.74 × 12,690.20
  4. Step 4: Simplify right side
    47,750.54x = 908,945,176.54
  5. Step 5: Solve for x
    x = 908,945,176.54/47,750.54
  6. Step 6: Final answer
    x = 19,035.28

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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.