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Finding the Fourth Proportional to 28,984.68, 43,478.94 and 9,264.72

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Solution

The fourth proportional to 28,984.68, 43,478.94 and 9,264.72 is: 13,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,984.68 : 43,478.94 = 9,264.72 : x
  2. Step 2: Convert to fraction form
    28,984.68/43,478.94 = 9,264.72/x
  3. Step 3: Cross multiply
    28,984.68x = 43,478.94 × 9,264.72
  4. Step 4: Simplify right side
    28,984.68x = 402,820,205.00
  5. Step 5: Solve for x
    x = 402,820,205.00/28,984.68
  6. Step 6: Final answer
    x = 13,897.69

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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.