Home / 27,307.89-37,686.44-18,217.58

Finding the Fourth Proportional to 27,307.89, 37,686.44 and 18,217.58

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Solution

The fourth proportional to 27,307.89, 37,686.44 and 18,217.58 is: 25,141.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,307.89 : 37,686.44 = 18,217.58 : x
  2. Step 2: Convert to fraction form
    27,307.89/37,686.44 = 18,217.58/x
  3. Step 3: Cross multiply
    27,307.89x = 37,686.44 × 18,217.58
  4. Step 4: Simplify right side
    27,307.89x = 686,555,592.73
  5. Step 5: Solve for x
    x = 686,555,592.73/27,307.89
  6. Step 6: Final answer
    x = 25,141.29

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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.