Home / 21,508.34-29,680.02-12,076.70

Finding the Fourth Proportional to 21,508.34, 29,680.02 and 12,076.70

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Solution

The fourth proportional to 21,508.34, 29,680.02 and 12,076.70 is: 16,665.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508.34 : 29,680.02 = 12,076.70 : x
  2. Step 2: Convert to fraction form
    21,508.34/29,680.02 = 12,076.70/x
  3. Step 3: Cross multiply
    21,508.34x = 29,680.02 × 12,076.70
  4. Step 4: Simplify right side
    21,508.34x = 358,436,549.13
  5. Step 5: Solve for x
    x = 358,436,549.13/21,508.34
  6. Step 6: Final answer
    x = 16,665.01

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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.