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Finding the Fourth Proportional to 28,853, 39,818.10 and 17,672.84

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Solution

The fourth proportional to 28,853, 39,818.10 and 17,672.84 is: 24,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853 : 39,818.10 = 17,672.84 : x
  2. Step 2: Convert to fraction form
    28,853/39,818.10 = 17,672.84/x
  3. Step 3: Cross multiply
    28,853x = 39,818.10 × 17,672.84
  4. Step 4: Simplify right side
    28,853x = 703,698,910.40
  5. Step 5: Solve for x
    x = 703,698,910.40/28,853
  6. Step 6: Final answer
    x = 24,389.11

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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.