Home / 38,186.88-57,266.28-13,220.52

Finding the Fourth Proportional to 38,186.88, 57,266.28 and 13,220.52

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Solution

The fourth proportional to 38,186.88, 57,266.28 and 13,220.52 is: 19,825.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,186.88 : 57,266.28 = 13,220.52 : x
  2. Step 2: Convert to fraction form
    38,186.88/57,266.28 = 13,220.52/x
  3. Step 3: Cross multiply
    38,186.88x = 57,266.28 × 13,220.52
  4. Step 4: Simplify right side
    38,186.88x = 757,090,000.07
  5. Step 5: Solve for x
    x = 757,090,000.07/38,186.88
  6. Step 6: Final answer
    x = 19,825.92

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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.