Home / 30,001.20-41,400.90-16,571.40

Finding the Fourth Proportional to 30,001.20, 41,400.90 and 16,571.40

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Solution

The fourth proportional to 30,001.20, 41,400.90 and 16,571.40 is: 22,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,001.20 : 41,400.90 = 16,571.40 : x
  2. Step 2: Convert to fraction form
    30,001.20/41,400.90 = 16,571.40/x
  3. Step 3: Cross multiply
    30,001.20x = 41,400.90 × 16,571.40
  4. Step 4: Simplify right side
    30,001.20x = 686,070,874.26
  5. Step 5: Solve for x
    x = 686,070,874.26/30,001.20
  6. Step 6: Final answer
    x = 22,868.11

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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.