Home / 30,423.81-41,983.60-16,995

Finding the Fourth Proportional to 30,423.81, 41,983.60 and 16,995

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Solution

The fourth proportional to 30,423.81, 41,983.60 and 16,995 is: 23,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423.81 : 41,983.60 = 16,995 : x
  2. Step 2: Convert to fraction form
    30,423.81/41,983.60 = 16,995/x
  3. Step 3: Cross multiply
    30,423.81x = 41,983.60 × 16,995
  4. Step 4: Simplify right side
    30,423.81x = 713,511,282
  5. Step 5: Solve for x
    x = 713,511,282/30,423.81
  6. Step 6: Final answer
    x = 23,452.40

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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.