Home / 25,840.96-38,669.10-20,255.91

Finding the Fourth Proportional to 25,840.96, 38,669.10 and 20,255.91

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Solution

The fourth proportional to 25,840.96, 38,669.10 and 20,255.91 is: 30,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,840.96 : 38,669.10 = 20,255.91 : x
  2. Step 2: Convert to fraction form
    25,840.96/38,669.10 = 20,255.91/x
  3. Step 3: Cross multiply
    25,840.96x = 38,669.10 × 20,255.91
  4. Step 4: Simplify right side
    25,840.96x = 783,277,588.41
  5. Step 5: Solve for x
    x = 783,277,588.41/25,840.96
  6. Step 6: Final answer
    x = 30,311.48

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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.