Home / 27,756.60-38,306.58-15,817.44

Finding the Fourth Proportional to 27,756.60, 38,306.58 and 15,817.44

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Solution

The fourth proportional to 27,756.60, 38,306.58 and 15,817.44 is: 21,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.60 : 38,306.58 = 15,817.44 : x
  2. Step 2: Convert to fraction form
    27,756.60/38,306.58 = 15,817.44/x
  3. Step 3: Cross multiply
    27,756.60x = 38,306.58 × 15,817.44
  4. Step 4: Simplify right side
    27,756.60x = 605,912,030.76
  5. Step 5: Solve for x
    x = 605,912,030.76/27,756.60
  6. Step 6: Final answer
    x = 21,829.48

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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.