Home / 21,631.90-32,461.50-8,483.92

Finding the Fourth Proportional to 21,631.90, 32,461.50 and 8,483.92

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Solution

The fourth proportional to 21,631.90, 32,461.50 and 8,483.92 is: 12,731.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.90 : 32,461.50 = 8,483.92 : x
  2. Step 2: Convert to fraction form
    21,631.90/32,461.50 = 8,483.92/x
  3. Step 3: Cross multiply
    21,631.90x = 32,461.50 × 8,483.92
  4. Step 4: Simplify right side
    21,631.90x = 275,400,769.08
  5. Step 5: Solve for x
    x = 275,400,769.08/21,631.90
  6. Step 6: Final answer
    x = 12,731.23

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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.