Home / 33,240.20-49,860.30-21,430.40

Finding the Fourth Proportional to 33,240.20, 49,860.30 and 21,430.40

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Solution

The fourth proportional to 33,240.20, 49,860.30 and 21,430.40 is: 32,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,240.20 : 49,860.30 = 21,430.40 : x
  2. Step 2: Convert to fraction form
    33,240.20/49,860.30 = 21,430.40/x
  3. Step 3: Cross multiply
    33,240.20x = 49,860.30 × 21,430.40
  4. Step 4: Simplify right side
    33,240.20x = 1,068,526,173.12
  5. Step 5: Solve for x
    x = 1,068,526,173.12/33,240.20
  6. Step 6: Final answer
    x = 32,145.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.