Home / 30,388.83-41,938.69-16,962.70

Finding the Fourth Proportional to 30,388.83, 41,938.69 and 16,962.70

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Solution

The fourth proportional to 30,388.83, 41,938.69 and 16,962.70 is: 23,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,388.83 : 41,938.69 = 16,962.70 : x
  2. Step 2: Convert to fraction form
    30,388.83/41,938.69 = 16,962.70/x
  3. Step 3: Cross multiply
    30,388.83x = 41,938.69 × 16,962.70
  4. Step 4: Simplify right side
    30,388.83x = 711,393,416.86
  5. Step 5: Solve for x
    x = 711,393,416.86/30,388.83
  6. Step 6: Final answer
    x = 23,409.70

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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.