Home / 28,631.80-39,601.74-25,319.80

Finding the Fourth Proportional to 28,631.80, 39,601.74 and 25,319.80

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Solution

The fourth proportional to 28,631.80, 39,601.74 and 25,319.80 is: 35,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.80 : 39,601.74 = 25,319.80 : x
  2. Step 2: Convert to fraction form
    28,631.80/39,601.74 = 25,319.80/x
  3. Step 3: Cross multiply
    28,631.80x = 39,601.74 × 25,319.80
  4. Step 4: Simplify right side
    28,631.80x = 1,002,708,136.45
  5. Step 5: Solve for x
    x = 1,002,708,136.45/28,631.80
  6. Step 6: Final answer
    x = 35,020.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.