Home / 21,063.08-29,076.36-12,568.16

Finding the Fourth Proportional to 21,063.08, 29,076.36 and 12,568.16

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Solution

The fourth proportional to 21,063.08, 29,076.36 and 12,568.16 is: 17,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.08 : 29,076.36 = 12,568.16 : x
  2. Step 2: Convert to fraction form
    21,063.08/29,076.36 = 12,568.16/x
  3. Step 3: Cross multiply
    21,063.08x = 29,076.36 × 12,568.16
  4. Step 4: Simplify right side
    21,063.08x = 365,436,344.70
  5. Step 5: Solve for x
    x = 365,436,344.70/21,063.08
  6. Step 6: Final answer
    x = 17,349.62

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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.