Home / 30,153.68-41,606.70-18,209.02

Finding the Fourth Proportional to 30,153.68, 41,606.70 and 18,209.02

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Solution

The fourth proportional to 30,153.68, 41,606.70 and 18,209.02 is: 25,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.68 : 41,606.70 = 18,209.02 : x
  2. Step 2: Convert to fraction form
    30,153.68/41,606.70 = 18,209.02/x
  3. Step 3: Cross multiply
    30,153.68x = 41,606.70 × 18,209.02
  4. Step 4: Simplify right side
    30,153.68x = 757,617,232.43
  5. Step 5: Solve for x
    x = 757,617,232.43/30,153.68
  6. Step 6: Final answer
    x = 25,125.20

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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.