Home / 30,416.64-41,970.81-16,986.18

Finding the Fourth Proportional to 30,416.64, 41,970.81 and 16,986.18

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Solution

The fourth proportional to 30,416.64, 41,970.81 and 16,986.18 is: 23,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416.64 : 41,970.81 = 16,986.18 : x
  2. Step 2: Convert to fraction form
    30,416.64/41,970.81 = 16,986.18/x
  3. Step 3: Cross multiply
    30,416.64x = 41,970.81 × 16,986.18
  4. Step 4: Simplify right side
    30,416.64x = 712,923,712.79
  5. Step 5: Solve for x
    x = 712,923,712.79/30,416.64
  6. Step 6: Final answer
    x = 23,438.61

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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.