Home / 26,438.40-39,579.68-23,157.90

Finding the Fourth Proportional to 26,438.40, 39,579.68 and 23,157.90

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Solution

The fourth proportional to 26,438.40, 39,579.68 and 23,157.90 is: 34,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,438.40 : 39,579.68 = 23,157.90 : x
  2. Step 2: Convert to fraction form
    26,438.40/39,579.68 = 23,157.90/x
  3. Step 3: Cross multiply
    26,438.40x = 39,579.68 × 23,157.90
  4. Step 4: Simplify right side
    26,438.40x = 916,582,271.47
  5. Step 5: Solve for x
    x = 916,582,271.47/26,438.40
  6. Step 6: Final answer
    x = 34,668.60

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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.