Home / 18,337.48-25,208.43-15,775.90

Finding the Fourth Proportional to 18,337.48, 25,208.43 and 15,775.90

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Solution

The fourth proportional to 18,337.48, 25,208.43 and 15,775.90 is: 21,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.48 : 25,208.43 = 15,775.90 : x
  2. Step 2: Convert to fraction form
    18,337.48/25,208.43 = 15,775.90/x
  3. Step 3: Cross multiply
    18,337.48x = 25,208.43 × 15,775.90
  4. Step 4: Simplify right side
    18,337.48x = 397,685,670.84
  5. Step 5: Solve for x
    x = 397,685,670.84/18,337.48
  6. Step 6: Final answer
    x = 21,687.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.