Home / 17,345.20-26,021.40-5,659.30

Finding the Fourth Proportional to 17,345.20, 26,021.40 and 5,659.30

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Solution

The fourth proportional to 17,345.20, 26,021.40 and 5,659.30 is: 8,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,345.20 : 26,021.40 = 5,659.30 : x
  2. Step 2: Convert to fraction form
    17,345.20/26,021.40 = 5,659.30/x
  3. Step 3: Cross multiply
    17,345.20x = 26,021.40 × 5,659.30
  4. Step 4: Simplify right side
    17,345.20x = 147,262,909.02
  5. Step 5: Solve for x
    x = 147,262,909.02/17,345.20
  6. Step 6: Final answer
    x = 8,490.12

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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.