Home / 20,114.64-30,172.77-9,579.24

Finding the Fourth Proportional to 20,114.64, 30,172.77 and 9,579.24

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Solution

The fourth proportional to 20,114.64, 30,172.77 and 9,579.24 is: 14,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.64 : 30,172.77 = 9,579.24 : x
  2. Step 2: Convert to fraction form
    20,114.64/30,172.77 = 9,579.24/x
  3. Step 3: Cross multiply
    20,114.64x = 30,172.77 × 9,579.24
  4. Step 4: Simplify right side
    20,114.64x = 289,032,205.29
  5. Step 5: Solve for x
    x = 289,032,205.29/20,114.64
  6. Step 6: Final answer
    x = 14,369.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.