Home / 28,654.07-42,981.63-9,934.72

Finding the Fourth Proportional to 28,654.07, 42,981.63 and 9,934.72

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Solution

The fourth proportional to 28,654.07, 42,981.63 and 9,934.72 is: 14,902.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.07 : 42,981.63 = 9,934.72 : x
  2. Step 2: Convert to fraction form
    28,654.07/42,981.63 = 9,934.72/x
  3. Step 3: Cross multiply
    28,654.07x = 42,981.63 × 9,934.72
  4. Step 4: Simplify right side
    28,654.07x = 427,010,281.54
  5. Step 5: Solve for x
    x = 427,010,281.54/28,654.07
  6. Step 6: Final answer
    x = 14,902.26

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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.