Home / 30,919.99-46,380.12-13,146.07

Finding the Fourth Proportional to 30,919.99, 46,380.12 and 13,146.07

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Solution

The fourth proportional to 30,919.99, 46,380.12 and 13,146.07 is: 19,719.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,919.99 : 46,380.12 = 13,146.07 : x
  2. Step 2: Convert to fraction form
    30,919.99/46,380.12 = 13,146.07/x
  3. Step 3: Cross multiply
    30,919.99x = 46,380.12 × 13,146.07
  4. Step 4: Simplify right side
    30,919.99x = 609,716,304.13
  5. Step 5: Solve for x
    x = 609,716,304.13/30,919.99
  6. Step 6: Final answer
    x = 19,719.16

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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.