Home / 21,784.59-30,080.34-17,751.96

Finding the Fourth Proportional to 21,784.59, 30,080.34 and 17,751.96

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Solution

The fourth proportional to 21,784.59, 30,080.34 and 17,751.96 is: 24,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,784.59 : 30,080.34 = 17,751.96 : x
  2. Step 2: Convert to fraction form
    21,784.59/30,080.34 = 17,751.96/x
  3. Step 3: Cross multiply
    21,784.59x = 30,080.34 × 17,751.96
  4. Step 4: Simplify right side
    21,784.59x = 533,984,992.47
  5. Step 5: Solve for x
    x = 533,984,992.47/21,784.59
  6. Step 6: Final answer
    x = 24,512.05

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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.