Home / 30,153.99-41,617.29-18,219.04

Finding the Fourth Proportional to 30,153.99, 41,617.29 and 18,219.04

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Solution

The fourth proportional to 30,153.99, 41,617.29 and 18,219.04 is: 25,145.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.99 : 41,617.29 = 18,219.04 : x
  2. Step 2: Convert to fraction form
    30,153.99/41,617.29 = 18,219.04/x
  3. Step 3: Cross multiply
    30,153.99x = 41,617.29 × 18,219.04
  4. Step 4: Simplify right side
    30,153.99x = 758,227,071.20
  5. Step 5: Solve for x
    x = 758,227,071.20/30,153.99
  6. Step 6: Final answer
    x = 25,145.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.