Home / 30,656.88-45,986.94-13,109.04

Finding the Fourth Proportional to 30,656.88, 45,986.94 and 13,109.04

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Solution

The fourth proportional to 30,656.88, 45,986.94 and 13,109.04 is: 19,664.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656.88 : 45,986.94 = 13,109.04 : x
  2. Step 2: Convert to fraction form
    30,656.88/45,986.94 = 13,109.04/x
  3. Step 3: Cross multiply
    30,656.88x = 45,986.94 × 13,109.04
  4. Step 4: Simplify right side
    30,656.88x = 602,844,635.94
  5. Step 5: Solve for x
    x = 602,844,635.94/30,656.88
  6. Step 6: Final answer
    x = 19,664.25

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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.