Home / 20,623.33-30,913.29-13,132.58

Finding the Fourth Proportional to 20,623.33, 30,913.29 and 13,132.58

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Solution

The fourth proportional to 20,623.33, 30,913.29 and 13,132.58 is: 19,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.33 : 30,913.29 = 13,132.58 : x
  2. Step 2: Convert to fraction form
    20,623.33/30,913.29 = 13,132.58/x
  3. Step 3: Cross multiply
    20,623.33x = 30,913.29 × 13,132.58
  4. Step 4: Simplify right side
    20,623.33x = 405,971,331.27
  5. Step 5: Solve for x
    x = 405,971,331.27/20,623.33
  6. Step 6: Final answer
    x = 19,685.05

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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.