Home / 21,203.34-31,792.50-8,056.62

Finding the Fourth Proportional to 21,203.34, 31,792.50 and 8,056.62

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Solution

The fourth proportional to 21,203.34, 31,792.50 and 8,056.62 is: 12,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.34 : 31,792.50 = 8,056.62 : x
  2. Step 2: Convert to fraction form
    21,203.34/31,792.50 = 8,056.62/x
  3. Step 3: Cross multiply
    21,203.34x = 31,792.50 × 8,056.62
  4. Step 4: Simplify right side
    21,203.34x = 256,140,091.35
  5. Step 5: Solve for x
    x = 256,140,091.35/21,203.34
  6. Step 6: Final answer
    x = 12,080.18

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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.