Home / 21,865.02-30,176.22-12,175.44

Finding the Fourth Proportional to 21,865.02, 30,176.22 and 12,175.44

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Solution

The fourth proportional to 21,865.02, 30,176.22 and 12,175.44 is: 16,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865.02 : 30,176.22 = 12,175.44 : x
  2. Step 2: Convert to fraction form
    21,865.02/30,176.22 = 12,175.44/x
  3. Step 3: Cross multiply
    21,865.02x = 30,176.22 × 12,175.44
  4. Step 4: Simplify right side
    21,865.02x = 367,408,756.04
  5. Step 5: Solve for x
    x = 367,408,756.04/21,865.02
  6. Step 6: Final answer
    x = 16,803.50

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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.