Home / 20,743.48-31,097.58-7,586.92

Finding the Fourth Proportional to 20,743.48, 31,097.58 and 7,586.92

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Solution

The fourth proportional to 20,743.48, 31,097.58 and 7,586.92 is: 11,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.48 : 31,097.58 = 7,586.92 : x
  2. Step 2: Convert to fraction form
    20,743.48/31,097.58 = 7,586.92/x
  3. Step 3: Cross multiply
    20,743.48x = 31,097.58 × 7,586.92
  4. Step 4: Simplify right side
    20,743.48x = 235,934,851.65
  5. Step 5: Solve for x
    x = 235,934,851.65/20,743.48
  6. Step 6: Final answer
    x = 11,373.93

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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.