Home / 21,042.78-29,038.05-12,083.97

Finding the Fourth Proportional to 21,042.78, 29,038.05 and 12,083.97

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Solution

The fourth proportional to 21,042.78, 29,038.05 and 12,083.97 is: 16,675.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.78 : 29,038.05 = 12,083.97 : x
  2. Step 2: Convert to fraction form
    21,042.78/29,038.05 = 12,083.97/x
  3. Step 3: Cross multiply
    21,042.78x = 29,038.05 × 12,083.97
  4. Step 4: Simplify right side
    21,042.78x = 350,894,925.06
  5. Step 5: Solve for x
    x = 350,894,925.06/21,042.78
  6. Step 6: Final answer
    x = 16,675.31

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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.