Home / 28,777.79-39,713.23-16,031.12

Finding the Fourth Proportional to 28,777.79, 39,713.23 and 16,031.12

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Solution

The fourth proportional to 28,777.79, 39,713.23 and 16,031.12 is: 22,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.79 : 39,713.23 = 16,031.12 : x
  2. Step 2: Convert to fraction form
    28,777.79/39,713.23 = 16,031.12/x
  3. Step 3: Cross multiply
    28,777.79x = 39,713.23 × 16,031.12
  4. Step 4: Simplify right side
    28,777.79x = 636,647,555.72
  5. Step 5: Solve for x
    x = 636,647,555.72/28,777.79
  6. Step 6: Final answer
    x = 22,122.88

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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.