Home / 28,855.56-39,820.50-16,108.01

Finding the Fourth Proportional to 28,855.56, 39,820.50 and 16,108.01

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Solution

The fourth proportional to 28,855.56, 39,820.50 and 16,108.01 is: 22,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,855.56 : 39,820.50 = 16,108.01 : x
  2. Step 2: Convert to fraction form
    28,855.56/39,820.50 = 16,108.01/x
  3. Step 3: Cross multiply
    28,855.56x = 39,820.50 × 16,108.01
  4. Step 4: Simplify right side
    28,855.56x = 641,429,012.21
  5. Step 5: Solve for x
    x = 641,429,012.21/28,855.56
  6. Step 6: Final answer
    x = 22,228.96

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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.