Home / 21,152.02-29,192.85-12,197.74

Finding the Fourth Proportional to 21,152.02, 29,192.85 and 12,197.74

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Solution

The fourth proportional to 21,152.02, 29,192.85 and 12,197.74 is: 16,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.02 : 29,192.85 = 12,197.74 : x
  2. Step 2: Convert to fraction form
    21,152.02/29,192.85 = 12,197.74/x
  3. Step 3: Cross multiply
    21,152.02x = 29,192.85 × 12,197.74
  4. Step 4: Simplify right side
    21,152.02x = 356,086,587.21
  5. Step 5: Solve for x
    x = 356,086,587.21/21,152.02
  6. Step 6: Final answer
    x = 16,834.64

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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.