Home / 28,311.48-39,064.12-16,370.44

Finding the Fourth Proportional to 28,311.48, 39,064.12 and 16,370.44

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Solution

The fourth proportional to 28,311.48, 39,064.12 and 16,370.44 is: 22,587.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.48 : 39,064.12 = 16,370.44 : x
  2. Step 2: Convert to fraction form
    28,311.48/39,064.12 = 16,370.44/x
  3. Step 3: Cross multiply
    28,311.48x = 39,064.12 × 16,370.44
  4. Step 4: Simplify right side
    28,311.48x = 639,496,832.61
  5. Step 5: Solve for x
    x = 639,496,832.61/28,311.48
  6. Step 6: Final answer
    x = 22,587.90

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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.