Home / 30,173.30-45,308.55-20,356.10

Finding the Fourth Proportional to 30,173.30, 45,308.55 and 20,356.10

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Solution

The fourth proportional to 30,173.30, 45,308.55 and 20,356.10 is: 30,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,173.30 : 45,308.55 = 20,356.10 : x
  2. Step 2: Convert to fraction form
    30,173.30/45,308.55 = 20,356.10/x
  3. Step 3: Cross multiply
    30,173.30x = 45,308.55 × 20,356.10
  4. Step 4: Simplify right side
    30,173.30x = 922,305,374.66
  5. Step 5: Solve for x
    x = 922,305,374.66/30,173.30
  6. Step 6: Final answer
    x = 30,566.94

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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.