Home / 30,232.28-45,273-19,105.40

Finding the Fourth Proportional to 30,232.28, 45,273 and 19,105.40

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Solution

The fourth proportional to 30,232.28, 45,273 and 19,105.40 is: 28,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,232.28 : 45,273 = 19,105.40 : x
  2. Step 2: Convert to fraction form
    30,232.28/45,273 = 19,105.40/x
  3. Step 3: Cross multiply
    30,232.28x = 45,273 × 19,105.40
  4. Step 4: Simplify right side
    30,232.28x = 864,958,774.20
  5. Step 5: Solve for x
    x = 864,958,774.20/30,232.28
  6. Step 6: Final answer
    x = 28,610.44

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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.