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Finding the Fourth Proportional to 28,513.94, 42,770.93 and 7,737.44

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Solution

The fourth proportional to 28,513.94, 42,770.93 and 7,737.44 is: 11,606.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.94 : 42,770.93 = 7,737.44 : x
  2. Step 2: Convert to fraction form
    28,513.94/42,770.93 = 7,737.44/x
  3. Step 3: Cross multiply
    28,513.94x = 42,770.93 × 7,737.44
  4. Step 4: Simplify right side
    28,513.94x = 330,937,252.08
  5. Step 5: Solve for x
    x = 330,937,252.08/28,513.94
  6. Step 6: Final answer
    x = 11,606.16

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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.