Home / 22,347.90-33,485.40-19,213.20

Finding the Fourth Proportional to 22,347.90, 33,485.40 and 19,213.20

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Solution

The fourth proportional to 22,347.90, 33,485.40 and 19,213.20 is: 28,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,347.90 : 33,485.40 = 19,213.20 : x
  2. Step 2: Convert to fraction form
    22,347.90/33,485.40 = 19,213.20/x
  3. Step 3: Cross multiply
    22,347.90x = 33,485.40 × 19,213.20
  4. Step 4: Simplify right side
    22,347.90x = 643,361,687.28
  5. Step 5: Solve for x
    x = 643,361,687.28/22,347.90
  6. Step 6: Final answer
    x = 28,788.46

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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.