Home / 21,607.43-29,818.24-12,176.33

Finding the Fourth Proportional to 21,607.43, 29,818.24 and 12,176.33

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Solution

The fourth proportional to 21,607.43, 29,818.24 and 12,176.33 is: 16,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.43 : 29,818.24 = 12,176.33 : x
  2. Step 2: Convert to fraction form
    21,607.43/29,818.24 = 12,176.33/x
  3. Step 3: Cross multiply
    21,607.43x = 29,818.24 × 12,176.33
  4. Step 4: Simplify right side
    21,607.43x = 363,076,581.17
  5. Step 5: Solve for x
    x = 363,076,581.17/21,607.43
  6. Step 6: Final answer
    x = 16,803.32

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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.