Home / 18,158.30-25,000.53-15,495.02

Finding the Fourth Proportional to 18,158.30, 25,000.53 and 15,495.02

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Solution

The fourth proportional to 18,158.30, 25,000.53 and 15,495.02 is: 21,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.30 : 25,000.53 = 15,495.02 : x
  2. Step 2: Convert to fraction form
    18,158.30/25,000.53 = 15,495.02/x
  3. Step 3: Cross multiply
    18,158.30x = 25,000.53 × 15,495.02
  4. Step 4: Simplify right side
    18,158.30x = 387,383,716.76
  5. Step 5: Solve for x
    x = 387,383,716.76/18,158.30
  6. Step 6: Final answer
    x = 21,333.70

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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.