Home / 21,578.13-32,370.89-9,892.35

Finding the Fourth Proportional to 21,578.13, 32,370.89 and 9,892.35

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Solution

The fourth proportional to 21,578.13, 32,370.89 and 9,892.35 is: 14,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.13 : 32,370.89 = 9,892.35 : x
  2. Step 2: Convert to fraction form
    21,578.13/32,370.89 = 9,892.35/x
  3. Step 3: Cross multiply
    21,578.13x = 32,370.89 × 9,892.35
  4. Step 4: Simplify right side
    21,578.13x = 320,224,124.23
  5. Step 5: Solve for x
    x = 320,224,124.23/21,578.13
  6. Step 6: Final answer
    x = 14,840.22

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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.