Home / 30,341.12-45,532.32-18,618.56

Finding the Fourth Proportional to 30,341.12, 45,532.32 and 18,618.56

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Solution

The fourth proportional to 30,341.12, 45,532.32 and 18,618.56 is: 27,940.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341.12 : 45,532.32 = 18,618.56 : x
  2. Step 2: Convert to fraction form
    30,341.12/45,532.32 = 18,618.56/x
  3. Step 3: Cross multiply
    30,341.12x = 45,532.32 × 18,618.56
  4. Step 4: Simplify right side
    30,341.12x = 847,746,231.86
  5. Step 5: Solve for x
    x = 847,746,231.86/30,341.12
  6. Step 6: Final answer
    x = 27,940.51

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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.