Home / 21,587.43-32,370.04-9,890.62

Finding the Fourth Proportional to 21,587.43, 32,370.04 and 9,890.62

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Solution

The fourth proportional to 21,587.43, 32,370.04 and 9,890.62 is: 14,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.43 : 32,370.04 = 9,890.62 : x
  2. Step 2: Convert to fraction form
    21,587.43/32,370.04 = 9,890.62/x
  3. Step 3: Cross multiply
    21,587.43x = 32,370.04 × 9,890.62
  4. Step 4: Simplify right side
    21,587.43x = 320,159,765.02
  5. Step 5: Solve for x
    x = 320,159,765.02/21,587.43
  6. Step 6: Final answer
    x = 14,830.84

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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.