Home / 28,108.34-38,784.82-16,782.42

Finding the Fourth Proportional to 28,108.34, 38,784.82 and 16,782.42

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Solution

The fourth proportional to 28,108.34, 38,784.82 and 16,782.42 is: 23,156.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.34 : 38,784.82 = 16,782.42 : x
  2. Step 2: Convert to fraction form
    28,108.34/38,784.82 = 16,782.42/x
  3. Step 3: Cross multiply
    28,108.34x = 38,784.82 × 16,782.42
  4. Step 4: Simplify right side
    28,108.34x = 650,903,138.86
  5. Step 5: Solve for x
    x = 650,903,138.86/28,108.34
  6. Step 6: Final answer
    x = 23,156.94

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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.