Home / 38,145.35-57,225.69-13,186.37

Finding the Fourth Proportional to 38,145.35, 57,225.69 and 13,186.37

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Solution

The fourth proportional to 38,145.35, 57,225.69 and 13,186.37 is: 19,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,145.35 : 57,225.69 = 13,186.37 : x
  2. Step 2: Convert to fraction form
    38,145.35/57,225.69 = 13,186.37/x
  3. Step 3: Cross multiply
    38,145.35x = 57,225.69 × 13,186.37
  4. Step 4: Simplify right side
    38,145.35x = 754,598,835.72
  5. Step 5: Solve for x
    x = 754,598,835.72/38,145.35
  6. Step 6: Final answer
    x = 19,782.20

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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.