Home / 21,343.92-29,459.88-12,967.44

Finding the Fourth Proportional to 21,343.92, 29,459.88 and 12,967.44

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Solution

The fourth proportional to 21,343.92, 29,459.88 and 12,967.44 is: 17,898.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.92 : 29,459.88 = 12,967.44 : x
  2. Step 2: Convert to fraction form
    21,343.92/29,459.88 = 12,967.44/x
  3. Step 3: Cross multiply
    21,343.92x = 29,459.88 × 12,967.44
  4. Step 4: Simplify right side
    21,343.92x = 382,019,226.31
  5. Step 5: Solve for x
    x = 382,019,226.31/21,343.92
  6. Step 6: Final answer
    x = 17,898.27

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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.