Home / 21,946.02-30,306.41-20,750.55

Finding the Fourth Proportional to 21,946.02, 30,306.41 and 20,750.55

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Solution

The fourth proportional to 21,946.02, 30,306.41 and 20,750.55 is: 28,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.02 : 30,306.41 = 20,750.55 : x
  2. Step 2: Convert to fraction form
    21,946.02/30,306.41 = 20,750.55/x
  3. Step 3: Cross multiply
    21,946.02x = 30,306.41 × 20,750.55
  4. Step 4: Simplify right side
    21,946.02x = 628,874,676.03
  5. Step 5: Solve for x
    x = 628,874,676.03/21,946.02
  6. Step 6: Final answer
    x = 28,655.52

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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.