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Finding the Fourth Proportional to 28,602.96, 42,906.36 and 9,884.88

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Solution

The fourth proportional to 28,602.96, 42,906.36 and 9,884.88 is: 14,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,602.96 : 42,906.36 = 9,884.88 : x
  2. Step 2: Convert to fraction form
    28,602.96/42,906.36 = 9,884.88/x
  3. Step 3: Cross multiply
    28,602.96x = 42,906.36 × 9,884.88
  4. Step 4: Simplify right side
    28,602.96x = 424,124,219.84
  5. Step 5: Solve for x
    x = 424,124,219.84/28,602.96
  6. Step 6: Final answer
    x = 14,827.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.