Home / 20,464.30-30,696.45-11,700.10

Finding the Fourth Proportional to 20,464.30, 30,696.45 and 11,700.10

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Solution

The fourth proportional to 20,464.30, 30,696.45 and 11,700.10 is: 17,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.30 : 30,696.45 = 11,700.10 : x
  2. Step 2: Convert to fraction form
    20,464.30/30,696.45 = 11,700.10/x
  3. Step 3: Cross multiply
    20,464.30x = 30,696.45 × 11,700.10
  4. Step 4: Simplify right side
    20,464.30x = 359,151,534.65
  5. Step 5: Solve for x
    x = 359,151,534.65/20,464.30
  6. Step 6: Final answer
    x = 17,550.15

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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.