Home / 21,272.52-29,354.94-12,319.32

Finding the Fourth Proportional to 21,272.52, 29,354.94 and 12,319.32

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Solution

The fourth proportional to 21,272.52, 29,354.94 and 12,319.32 is: 17,000.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.52 : 29,354.94 = 12,319.32 : x
  2. Step 2: Convert to fraction form
    21,272.52/29,354.94 = 12,319.32/x
  3. Step 3: Cross multiply
    21,272.52x = 29,354.94 × 12,319.32
  4. Step 4: Simplify right side
    21,272.52x = 361,632,899.44
  5. Step 5: Solve for x
    x = 361,632,899.44/21,272.52
  6. Step 6: Final answer
    x = 17,000.00

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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.