Home / 20,671.14-31,011.39-7,523.58

Finding the Fourth Proportional to 20,671.14, 31,011.39 and 7,523.58

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Solution

The fourth proportional to 20,671.14, 31,011.39 and 7,523.58 is: 11,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.14 : 31,011.39 = 7,523.58 : x
  2. Step 2: Convert to fraction form
    20,671.14/31,011.39 = 7,523.58/x
  3. Step 3: Cross multiply
    20,671.14x = 31,011.39 × 7,523.58
  4. Step 4: Simplify right side
    20,671.14x = 233,316,673.58
  5. Step 5: Solve for x
    x = 233,316,673.58/20,671.14
  6. Step 6: Final answer
    x = 11,287.07

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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.