Home / 21,802.96-30,089.64-12,372.13

Finding the Fourth Proportional to 21,802.96, 30,089.64 and 12,372.13

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Solution

The fourth proportional to 21,802.96, 30,089.64 and 12,372.13 is: 17,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.96 : 30,089.64 = 12,372.13 : x
  2. Step 2: Convert to fraction form
    21,802.96/30,089.64 = 12,372.13/x
  3. Step 3: Cross multiply
    21,802.96x = 30,089.64 × 12,372.13
  4. Step 4: Simplify right side
    21,802.96x = 372,272,937.73
  5. Step 5: Solve for x
    x = 372,272,937.73/21,802.96
  6. Step 6: Final answer
    x = 17,074.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.