Home / 20,690.74-31,014.56-9,588.31

Finding the Fourth Proportional to 20,690.74, 31,014.56 and 9,588.31

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Solution

The fourth proportional to 20,690.74, 31,014.56 and 9,588.31 is: 14,372.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690.74 : 31,014.56 = 9,588.31 : x
  2. Step 2: Convert to fraction form
    20,690.74/31,014.56 = 9,588.31/x
  3. Step 3: Cross multiply
    20,690.74x = 31,014.56 × 9,588.31
  4. Step 4: Simplify right side
    20,690.74x = 297,377,162.23
  5. Step 5: Solve for x
    x = 297,377,162.23/20,690.74
  6. Step 6: Final answer
    x = 14,372.48

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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.