Home / 21,767.22-30,039.12-12,335.58

Finding the Fourth Proportional to 21,767.22, 30,039.12 and 12,335.58

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Solution

The fourth proportional to 21,767.22, 30,039.12 and 12,335.58 is: 17,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,767.22 : 30,039.12 = 12,335.58 : x
  2. Step 2: Convert to fraction form
    21,767.22/30,039.12 = 12,335.58/x
  3. Step 3: Cross multiply
    21,767.22x = 30,039.12 × 12,335.58
  4. Step 4: Simplify right side
    21,767.22x = 370,549,967.89
  5. Step 5: Solve for x
    x = 370,549,967.89/21,767.22
  6. Step 6: Final answer
    x = 17,023.30

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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.