Home / 21,373.67-29,489.64-12,298.55

Finding the Fourth Proportional to 21,373.67, 29,489.64 and 12,298.55

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Solution

The fourth proportional to 21,373.67, 29,489.64 and 12,298.55 is: 16,968.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.67 : 29,489.64 = 12,298.55 : x
  2. Step 2: Convert to fraction form
    21,373.67/29,489.64 = 12,298.55/x
  3. Step 3: Cross multiply
    21,373.67x = 29,489.64 × 12,298.55
  4. Step 4: Simplify right side
    21,373.67x = 362,679,664.57
  5. Step 5: Solve for x
    x = 362,679,664.57/21,373.67
  6. Step 6: Final answer
    x = 16,968.53

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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.