Home / 21,867.05-32,792.47-9,215.93

Finding the Fourth Proportional to 21,867.05, 32,792.47 and 9,215.93

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Solution

The fourth proportional to 21,867.05, 32,792.47 and 9,215.93 is: 13,820.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867.05 : 32,792.47 = 9,215.93 : x
  2. Step 2: Convert to fraction form
    21,867.05/32,792.47 = 9,215.93/x
  3. Step 3: Cross multiply
    21,867.05x = 32,792.47 × 9,215.93
  4. Step 4: Simplify right side
    21,867.05x = 302,213,108.05
  5. Step 5: Solve for x
    x = 302,213,108.05/21,867.05
  6. Step 6: Final answer
    x = 13,820.48

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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.