Home / 31,128.30-46,692.45-25,660.80

Finding the Fourth Proportional to 31,128.30, 46,692.45 and 25,660.80

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Solution

The fourth proportional to 31,128.30, 46,692.45 and 25,660.80 is: 38,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,128.30 : 46,692.45 = 25,660.80 : x
  2. Step 2: Convert to fraction form
    31,128.30/46,692.45 = 25,660.80/x
  3. Step 3: Cross multiply
    31,128.30x = 46,692.45 × 25,660.80
  4. Step 4: Simplify right side
    31,128.30x = 1,198,165,620.96
  5. Step 5: Solve for x
    x = 1,198,165,620.96/31,128.30
  6. Step 6: Final answer
    x = 38,491.20

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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.