Home / 28,126.67-42,206.90-11,256.66

Finding the Fourth Proportional to 28,126.67, 42,206.90 and 11,256.66

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Solution

The fourth proportional to 28,126.67, 42,206.90 and 11,256.66 is: 16,891.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.67 : 42,206.90 = 11,256.66 : x
  2. Step 2: Convert to fraction form
    28,126.67/42,206.90 = 11,256.66/x
  3. Step 3: Cross multiply
    28,126.67x = 42,206.90 × 11,256.66
  4. Step 4: Simplify right side
    28,126.67x = 475,108,666.67
  5. Step 5: Solve for x
    x = 475,108,666.67/28,126.67
  6. Step 6: Final answer
    x = 16,891.75

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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.