Home / 20,312.10-30,464.64-5,519.07

Finding the Fourth Proportional to 20,312.10, 30,464.64 and 5,519.07

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Solution

The fourth proportional to 20,312.10, 30,464.64 and 5,519.07 is: 8,277.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,312.10 : 30,464.64 = 5,519.07 : x
  2. Step 2: Convert to fraction form
    20,312.10/30,464.64 = 5,519.07/x
  3. Step 3: Cross multiply
    20,312.10x = 30,464.64 × 5,519.07
  4. Step 4: Simplify right side
    20,312.10x = 168,136,480.68
  5. Step 5: Solve for x
    x = 168,136,480.68/20,312.10
  6. Step 6: Final answer
    x = 8,277.65

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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.