Home / 31,750.60-47,618.88-12,028.72

Finding the Fourth Proportional to 31,750.60, 47,618.88 and 12,028.72

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Solution

The fourth proportional to 31,750.60, 47,618.88 and 12,028.72 is: 18,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,750.60 : 47,618.88 = 12,028.72 : x
  2. Step 2: Convert to fraction form
    31,750.60/47,618.88 = 12,028.72/x
  3. Step 3: Cross multiply
    31,750.60x = 47,618.88 × 12,028.72
  4. Step 4: Simplify right side
    31,750.60x = 572,794,174.23
  5. Step 5: Solve for x
    x = 572,794,174.23/31,750.60
  6. Step 6: Final answer
    x = 18,040.42

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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.