Home / 26,358.72-39,540.10-7,639.01

Finding the Fourth Proportional to 26,358.72, 39,540.10 and 7,639.01

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Solution

The fourth proportional to 26,358.72, 39,540.10 and 7,639.01 is: 11,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,358.72 : 39,540.10 = 7,639.01 : x
  2. Step 2: Convert to fraction form
    26,358.72/39,540.10 = 7,639.01/x
  3. Step 3: Cross multiply
    26,358.72x = 39,540.10 × 7,639.01
  4. Step 4: Simplify right side
    26,358.72x = 302,047,165.10
  5. Step 5: Solve for x
    x = 302,047,165.10/26,358.72
  6. Step 6: Final answer
    x = 11,459.10

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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.