Home / 21,470.36-32,208.45-7,426.61

Finding the Fourth Proportional to 21,470.36, 32,208.45 and 7,426.61

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Solution

The fourth proportional to 21,470.36, 32,208.45 and 7,426.61 is: 11,140.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470.36 : 32,208.45 = 7,426.61 : x
  2. Step 2: Convert to fraction form
    21,470.36/32,208.45 = 7,426.61/x
  3. Step 3: Cross multiply
    21,470.36x = 32,208.45 × 7,426.61
  4. Step 4: Simplify right side
    21,470.36x = 239,199,596.85
  5. Step 5: Solve for x
    x = 239,199,596.85/21,470.36
  6. Step 6: Final answer
    x = 11,140.92

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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.