Home / 28,666.66-42,992.70-11,126.92

Finding the Fourth Proportional to 28,666.66, 42,992.70 and 11,126.92

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Solution

The fourth proportional to 28,666.66, 42,992.70 and 11,126.92 is: 16,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.66 : 42,992.70 = 11,126.92 : x
  2. Step 2: Convert to fraction form
    28,666.66/42,992.70 = 11,126.92/x
  3. Step 3: Cross multiply
    28,666.66x = 42,992.70 × 11,126.92
  4. Step 4: Simplify right side
    28,666.66x = 478,376,333.48
  5. Step 5: Solve for x
    x = 478,376,333.48/28,666.66
  6. Step 6: Final answer
    x = 16,687.55

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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.