Home / 31,739.40-47,615.76-12,017.52

Finding the Fourth Proportional to 31,739.40, 47,615.76 and 12,017.52

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Solution

The fourth proportional to 31,739.40, 47,615.76 and 12,017.52 is: 18,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.40 : 47,615.76 = 12,017.52 : x
  2. Step 2: Convert to fraction form
    31,739.40/47,615.76 = 12,017.52/x
  3. Step 3: Cross multiply
    31,739.40x = 47,615.76 × 12,017.52
  4. Step 4: Simplify right side
    31,739.40x = 572,223,348.12
  5. Step 5: Solve for x
    x = 572,223,348.12/31,739.40
  6. Step 6: Final answer
    x = 18,028.80

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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.