Home / 26,579.70-39,901.95-13,425.30

Finding the Fourth Proportional to 26,579.70, 39,901.95 and 13,425.30

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Solution

The fourth proportional to 26,579.70, 39,901.95 and 13,425.30 is: 20,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,579.70 : 39,901.95 = 13,425.30 : x
  2. Step 2: Convert to fraction form
    26,579.70/39,901.95 = 13,425.30/x
  3. Step 3: Cross multiply
    26,579.70x = 39,901.95 × 13,425.30
  4. Step 4: Simplify right side
    26,579.70x = 535,695,649.34
  5. Step 5: Solve for x
    x = 535,695,649.34/26,579.70
  6. Step 6: Final answer
    x = 20,154.32

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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.