Home / 21,598.12-29,803.62-12,169

Finding the Fourth Proportional to 21,598.12, 29,803.62 and 12,169

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Solution

The fourth proportional to 21,598.12, 29,803.62 and 12,169 is: 16,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.12 : 29,803.62 = 12,169 : x
  2. Step 2: Convert to fraction form
    21,598.12/29,803.62 = 12,169/x
  3. Step 3: Cross multiply
    21,598.12x = 29,803.62 × 12,169
  4. Step 4: Simplify right side
    21,598.12x = 362,680,251.78
  5. Step 5: Solve for x
    x = 362,680,251.78/21,598.12
  6. Step 6: Final answer
    x = 16,792.21

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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.