Home / 30,447.12-45,674.28-11,722.80

Finding the Fourth Proportional to 30,447.12, 45,674.28 and 11,722.80

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Solution

The fourth proportional to 30,447.12, 45,674.28 and 11,722.80 is: 17,585.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,447.12 : 45,674.28 = 11,722.80 : x
  2. Step 2: Convert to fraction form
    30,447.12/45,674.28 = 11,722.80/x
  3. Step 3: Cross multiply
    30,447.12x = 45,674.28 × 11,722.80
  4. Step 4: Simplify right side
    30,447.12x = 535,430,449.58
  5. Step 5: Solve for x
    x = 535,430,449.58/30,447.12
  6. Step 6: Final answer
    x = 17,585.59

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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.