Home / 25,586.20-38,383.08-13,113.28

Finding the Fourth Proportional to 25,586.20, 38,383.08 and 13,113.28

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Solution

The fourth proportional to 25,586.20, 38,383.08 and 13,113.28 is: 19,671.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,586.20 : 38,383.08 = 13,113.28 : x
  2. Step 2: Convert to fraction form
    25,586.20/38,383.08 = 13,113.28/x
  3. Step 3: Cross multiply
    25,586.20x = 38,383.08 × 13,113.28
  4. Step 4: Simplify right side
    25,586.20x = 503,328,075.30
  5. Step 5: Solve for x
    x = 503,328,075.30/25,586.20
  6. Step 6: Final answer
    x = 19,671.86

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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.