Home / 20,671.07-31,011.26-7,523.55

Finding the Fourth Proportional to 20,671.07, 31,011.26 and 7,523.55

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Solution

The fourth proportional to 20,671.07, 31,011.26 and 7,523.55 is: 11,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.07 : 31,011.26 = 7,523.55 : x
  2. Step 2: Convert to fraction form
    20,671.07/31,011.26 = 7,523.55/x
  3. Step 3: Cross multiply
    20,671.07x = 31,011.26 × 7,523.55
  4. Step 4: Simplify right side
    20,671.07x = 233,314,727.56
  5. Step 5: Solve for x
    x = 233,314,727.56/20,671.07
  6. Step 6: Final answer
    x = 11,287.02

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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.