Home / 20,637.79-30,958.74-7,491.19

Finding the Fourth Proportional to 20,637.79, 30,958.74 and 7,491.19

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Solution

The fourth proportional to 20,637.79, 30,958.74 and 7,491.19 is: 11,237.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.79 : 30,958.74 = 7,491.19 : x
  2. Step 2: Convert to fraction form
    20,637.79/30,958.74 = 7,491.19/x
  3. Step 3: Cross multiply
    20,637.79x = 30,958.74 × 7,491.19
  4. Step 4: Simplify right side
    20,637.79x = 231,917,803.50
  5. Step 5: Solve for x
    x = 231,917,803.50/20,637.79
  6. Step 6: Final answer
    x = 11,237.53

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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.