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Finding the Fourth Proportional to 21,980.32, 32,941.32 and 19,044.88

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Solution

The fourth proportional to 21,980.32, 32,941.32 and 19,044.88 is: 28,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,980.32 : 32,941.32 = 19,044.88 : x
  2. Step 2: Convert to fraction form
    21,980.32/32,941.32 = 19,044.88/x
  3. Step 3: Cross multiply
    21,980.32x = 32,941.32 × 19,044.88
  4. Step 4: Simplify right side
    21,980.32x = 627,363,486.44
  5. Step 5: Solve for x
    x = 627,363,486.44/21,980.32
  6. Step 6: Final answer
    x = 28,542.05

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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.