Home / 21,599.64-29,809.32-12,170.02

Finding the Fourth Proportional to 21,599.64, 29,809.32 and 12,170.02

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Solution

The fourth proportional to 21,599.64, 29,809.32 and 12,170.02 is: 16,795.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.64 : 29,809.32 = 12,170.02 : x
  2. Step 2: Convert to fraction form
    21,599.64/29,809.32 = 12,170.02/x
  3. Step 3: Cross multiply
    21,599.64x = 29,809.32 × 12,170.02
  4. Step 4: Simplify right side
    21,599.64x = 362,780,020.59
  5. Step 5: Solve for x
    x = 362,780,020.59/21,599.64
  6. Step 6: Final answer
    x = 16,795.65

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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.