Home / 30,388.61-41,938.39-16,962.48

Finding the Fourth Proportional to 30,388.61, 41,938.39 and 16,962.48

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Solution

The fourth proportional to 30,388.61, 41,938.39 and 16,962.48 is: 23,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,388.61 : 41,938.39 = 16,962.48 : x
  2. Step 2: Convert to fraction form
    30,388.61/41,938.39 = 16,962.48/x
  3. Step 3: Cross multiply
    30,388.61x = 41,938.39 × 16,962.48
  4. Step 4: Simplify right side
    30,388.61x = 711,379,101.61
  5. Step 5: Solve for x
    x = 711,379,101.61/30,388.61
  6. Step 6: Final answer
    x = 23,409.40

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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.