Home / 28,524.99-39,362.88-15,777.42

Finding the Fourth Proportional to 28,524.99, 39,362.88 and 15,777.42

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Solution

The fourth proportional to 28,524.99, 39,362.88 and 15,777.42 is: 21,771.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,524.99 : 39,362.88 = 15,777.42 : x
  2. Step 2: Convert to fraction form
    28,524.99/39,362.88 = 15,777.42/x
  3. Step 3: Cross multiply
    28,524.99x = 39,362.88 × 15,777.42
  4. Step 4: Simplify right side
    28,524.99x = 621,044,690.17
  5. Step 5: Solve for x
    x = 621,044,690.17/28,524.99
  6. Step 6: Final answer
    x = 21,771.95

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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.