Home / 21,042.28-29,037.36-12,083.47

Finding the Fourth Proportional to 21,042.28, 29,037.36 and 12,083.47

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Solution

The fourth proportional to 21,042.28, 29,037.36 and 12,083.47 is: 16,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.28 : 29,037.36 = 12,083.47 : x
  2. Step 2: Convert to fraction form
    21,042.28/29,037.36 = 12,083.47/x
  3. Step 3: Cross multiply
    21,042.28x = 29,037.36 × 12,083.47
  4. Step 4: Simplify right side
    21,042.28x = 350,872,068.44
  5. Step 5: Solve for x
    x = 350,872,068.44/21,042.28
  6. Step 6: Final answer
    x = 16,674.62

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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.