Home / 20,941.93-31,383.08-10,401.62

Finding the Fourth Proportional to 20,941.93, 31,383.08 and 10,401.62

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Solution

The fourth proportional to 20,941.93, 31,383.08 and 10,401.62 is: 15,587.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.93 : 31,383.08 = 10,401.62 : x
  2. Step 2: Convert to fraction form
    20,941.93/31,383.08 = 10,401.62/x
  3. Step 3: Cross multiply
    20,941.93x = 31,383.08 × 10,401.62
  4. Step 4: Simplify right side
    20,941.93x = 326,434,872.59
  5. Step 5: Solve for x
    x = 326,434,872.59/20,941.93
  6. Step 6: Final answer
    x = 15,587.62

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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.