Home / 21,275.19-29,362.51-12,204.09

Finding the Fourth Proportional to 21,275.19, 29,362.51 and 12,204.09

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Solution

The fourth proportional to 21,275.19, 29,362.51 and 12,204.09 is: 16,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.19 : 29,362.51 = 12,204.09 : x
  2. Step 2: Convert to fraction form
    21,275.19/29,362.51 = 12,204.09/x
  3. Step 3: Cross multiply
    21,275.19x = 29,362.51 × 12,204.09
  4. Step 4: Simplify right side
    21,275.19x = 358,342,714.67
  5. Step 5: Solve for x
    x = 358,342,714.67/21,275.19
  6. Step 6: Final answer
    x = 16,843.22

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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.