Home / 30,401.60-41,954.88-18,463.04

Finding the Fourth Proportional to 30,401.60, 41,954.88 and 18,463.04

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Solution

The fourth proportional to 30,401.60, 41,954.88 and 18,463.04 is: 25,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,401.60 : 41,954.88 = 18,463.04 : x
  2. Step 2: Convert to fraction form
    30,401.60/41,954.88 = 18,463.04/x
  3. Step 3: Cross multiply
    30,401.60x = 41,954.88 × 18,463.04
  4. Step 4: Simplify right side
    30,401.60x = 774,614,627.64
  5. Step 5: Solve for x
    x = 774,614,627.64/30,401.60
  6. Step 6: Final answer
    x = 25,479.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.