Home / 20,167.81-30,242.46-11,851.74

Finding the Fourth Proportional to 20,167.81, 30,242.46 and 11,851.74

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Solution

The fourth proportional to 20,167.81, 30,242.46 and 11,851.74 is: 17,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.81 : 30,242.46 = 11,851.74 : x
  2. Step 2: Convert to fraction form
    20,167.81/30,242.46 = 11,851.74/x
  3. Step 3: Cross multiply
    20,167.81x = 30,242.46 × 11,851.74
  4. Step 4: Simplify right side
    20,167.81x = 358,425,772.88
  5. Step 5: Solve for x
    x = 358,425,772.88/20,167.81
  6. Step 6: Final answer
    x = 17,772.17

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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.