Home / 31,739.38-47,615.74-12,017.50

Finding the Fourth Proportional to 31,739.38, 47,615.74 and 12,017.50

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Solution

The fourth proportional to 31,739.38, 47,615.74 and 12,017.50 is: 18,028.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.38 : 47,615.74 = 12,017.50 : x
  2. Step 2: Convert to fraction form
    31,739.38/47,615.74 = 12,017.50/x
  3. Step 3: Cross multiply
    31,739.38x = 47,615.74 × 12,017.50
  4. Step 4: Simplify right side
    31,739.38x = 572,222,155.45
  5. Step 5: Solve for x
    x = 572,222,155.45/31,739.38
  6. Step 6: Final answer
    x = 18,028.78

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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.