Home / 15,784.70-23,680.76-4,691.48

Finding the Fourth Proportional to 15,784.70, 23,680.76 and 4,691.48

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Solution

The fourth proportional to 15,784.70, 23,680.76 and 4,691.48 is: 7,038.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784.70 : 23,680.76 = 4,691.48 : x
  2. Step 2: Convert to fraction form
    15,784.70/23,680.76 = 4,691.48/x
  3. Step 3: Cross multiply
    15,784.70x = 23,680.76 × 4,691.48
  4. Step 4: Simplify right side
    15,784.70x = 111,097,811.92
  5. Step 5: Solve for x
    x = 111,097,811.92/15,784.70
  6. Step 6: Final answer
    x = 7,038.32

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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.