Home / 21,433.45-29,578.12-12,002.01

Finding the Fourth Proportional to 21,433.45, 29,578.12 and 12,002.01

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Solution

The fourth proportional to 21,433.45, 29,578.12 and 12,002.01 is: 16,562.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.45 : 29,578.12 = 12,002.01 : x
  2. Step 2: Convert to fraction form
    21,433.45/29,578.12 = 12,002.01/x
  3. Step 3: Cross multiply
    21,433.45x = 29,578.12 × 12,002.01
  4. Step 4: Simplify right side
    21,433.45x = 354,996,892.02
  5. Step 5: Solve for x
    x = 354,996,892.02/21,433.45
  6. Step 6: Final answer
    x = 16,562.75

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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.