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Finding the Fourth Proportional to 21,999.64, 32,920.62 and 19,048.26

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Solution

The fourth proportional to 21,999.64, 32,920.62 and 19,048.26 is: 28,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,999.64 : 32,920.62 = 19,048.26 : x
  2. Step 2: Convert to fraction form
    21,999.64/32,920.62 = 19,048.26/x
  3. Step 3: Cross multiply
    21,999.64x = 32,920.62 × 19,048.26
  4. Step 4: Simplify right side
    21,999.64x = 627,080,529.12
  5. Step 5: Solve for x
    x = 627,080,529.12/21,999.64
  6. Step 6: Final answer
    x = 28,504.13

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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.