Home / 30,377.68-45,564.06-13,515.92

Finding the Fourth Proportional to 30,377.68, 45,564.06 and 13,515.92

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Solution

The fourth proportional to 30,377.68, 45,564.06 and 13,515.92 is: 20,272.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,377.68 : 45,564.06 = 13,515.92 : x
  2. Step 2: Convert to fraction form
    30,377.68/45,564.06 = 13,515.92/x
  3. Step 3: Cross multiply
    30,377.68x = 45,564.06 × 13,515.92
  4. Step 4: Simplify right side
    30,377.68x = 615,840,189.84
  5. Step 5: Solve for x
    x = 615,840,189.84/30,377.68
  6. Step 6: Final answer
    x = 20,272.79

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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.