Home / 21,946.52-30,307.11-20,751.05

Finding the Fourth Proportional to 21,946.52, 30,307.11 and 20,751.05

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Solution

The fourth proportional to 21,946.52, 30,307.11 and 20,751.05 is: 28,656.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.52 : 30,307.11 = 20,751.05 : x
  2. Step 2: Convert to fraction form
    21,946.52/30,307.11 = 20,751.05/x
  3. Step 3: Cross multiply
    21,946.52x = 30,307.11 × 20,751.05
  4. Step 4: Simplify right side
    21,946.52x = 628,904,203.43
  5. Step 5: Solve for x
    x = 628,904,203.43/21,946.52
  6. Step 6: Final answer
    x = 28,656.22

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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.