Home / 30,219.13-45,344.04-13,575.79

Finding the Fourth Proportional to 30,219.13, 45,344.04 and 13,575.79

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Solution

The fourth proportional to 30,219.13, 45,344.04 and 13,575.79 is: 20,370.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.13 : 45,344.04 = 13,575.79 : x
  2. Step 2: Convert to fraction form
    30,219.13/45,344.04 = 13,575.79/x
  3. Step 3: Cross multiply
    30,219.13x = 45,344.04 × 13,575.79
  4. Step 4: Simplify right side
    30,219.13x = 615,581,164.79
  5. Step 5: Solve for x
    x = 615,581,164.79/30,219.13
  6. Step 6: Final answer
    x = 20,370.58

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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.