Home / 30,259.08-45,377.28-13,618.44

Finding the Fourth Proportional to 30,259.08, 45,377.28 and 13,618.44

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Solution

The fourth proportional to 30,259.08, 45,377.28 and 13,618.44 is: 20,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,259.08 : 45,377.28 = 13,618.44 : x
  2. Step 2: Convert to fraction form
    30,259.08/45,377.28 = 13,618.44/x
  3. Step 3: Cross multiply
    30,259.08x = 45,377.28 × 13,618.44
  4. Step 4: Simplify right side
    30,259.08x = 617,967,765.04
  5. Step 5: Solve for x
    x = 617,967,765.04/30,259.08
  6. Step 6: Final answer
    x = 20,422.56

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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.