Home / 26,139.72-39,216.18-11,345.04

Finding the Fourth Proportional to 26,139.72, 39,216.18 and 11,345.04

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Solution

The fourth proportional to 26,139.72, 39,216.18 and 11,345.04 is: 17,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,139.72 : 39,216.18 = 11,345.04 : x
  2. Step 2: Convert to fraction form
    26,139.72/39,216.18 = 11,345.04/x
  3. Step 3: Cross multiply
    26,139.72x = 39,216.18 × 11,345.04
  4. Step 4: Simplify right side
    26,139.72x = 444,909,130.75
  5. Step 5: Solve for x
    x = 444,909,130.75/26,139.72
  6. Step 6: Final answer
    x = 17,020.42

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1.5x scale

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.