Home / 21,981.51-32,973.75-8,833.86

Finding the Fourth Proportional to 21,981.51, 32,973.75 and 8,833.86

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Solution

The fourth proportional to 21,981.51, 32,973.75 and 8,833.86 is: 13,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981.51 : 32,973.75 = 8,833.86 : x
  2. Step 2: Convert to fraction form
    21,981.51/32,973.75 = 8,833.86/x
  3. Step 3: Cross multiply
    21,981.51x = 32,973.75 × 8,833.86
  4. Step 4: Simplify right side
    21,981.51x = 291,285,491.18
  5. Step 5: Solve for x
    x = 291,285,491.18/21,981.51
  6. Step 6: Final answer
    x = 13,251.39

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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.