Home / 21,252.05-29,326.56-12,298.91

Finding the Fourth Proportional to 21,252.05, 29,326.56 and 12,298.91

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Solution

The fourth proportional to 21,252.05, 29,326.56 and 12,298.91 is: 16,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.05 : 29,326.56 = 12,298.91 : x
  2. Step 2: Convert to fraction form
    21,252.05/29,326.56 = 12,298.91/x
  3. Step 3: Cross multiply
    21,252.05x = 29,326.56 × 12,298.91
  4. Step 4: Simplify right side
    21,252.05x = 360,684,722.05
  5. Step 5: Solve for x
    x = 360,684,722.05/21,252.05
  6. Step 6: Final answer
    x = 16,971.76

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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.