Home / 28,676.41-42,997.88-11,125.74

Finding the Fourth Proportional to 28,676.41, 42,997.88 and 11,125.74

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Solution

The fourth proportional to 28,676.41, 42,997.88 and 11,125.74 is: 16,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.41 : 42,997.88 = 11,125.74 : x
  2. Step 2: Convert to fraction form
    28,676.41/42,997.88 = 11,125.74/x
  3. Step 3: Cross multiply
    28,676.41x = 42,997.88 × 11,125.74
  4. Step 4: Simplify right side
    28,676.41x = 478,382,962.81
  5. Step 5: Solve for x
    x = 478,382,962.81/28,676.41
  6. Step 6: Final answer
    x = 16,682.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.