Home / 30,345.36-45,517.58-18,502.62

Finding the Fourth Proportional to 30,345.36, 45,517.58 and 18,502.62

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Solution

The fourth proportional to 30,345.36, 45,517.58 and 18,502.62 is: 27,753.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.36 : 45,517.58 = 18,502.62 : x
  2. Step 2: Convert to fraction form
    30,345.36/45,517.58 = 18,502.62/x
  3. Step 3: Cross multiply
    30,345.36x = 45,517.58 × 18,502.62
  4. Step 4: Simplify right side
    30,345.36x = 842,194,486.06
  5. Step 5: Solve for x
    x = 842,194,486.06/30,345.36
  6. Step 6: Final answer
    x = 27,753.65

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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.