Home / 25,821.70-38,739.88-13,348.50

Finding the Fourth Proportional to 25,821.70, 38,739.88 and 13,348.50

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Solution

The fourth proportional to 25,821.70, 38,739.88 and 13,348.50 is: 20,026.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,821.70 : 38,739.88 = 13,348.50 : x
  2. Step 2: Convert to fraction form
    25,821.70/38,739.88 = 13,348.50/x
  3. Step 3: Cross multiply
    25,821.70x = 38,739.88 × 13,348.50
  4. Step 4: Simplify right side
    25,821.70x = 517,119,288.18
  5. Step 5: Solve for x
    x = 517,119,288.18/25,821.70
  6. Step 6: Final answer
    x = 20,026.54

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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.