Home / 28,623.17-42,879.40-16,105.16

Finding the Fourth Proportional to 28,623.17, 42,879.40 and 16,105.16

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Solution

The fourth proportional to 28,623.17, 42,879.40 and 16,105.16 is: 24,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.17 : 42,879.40 = 16,105.16 : x
  2. Step 2: Convert to fraction form
    28,623.17/42,879.40 = 16,105.16/x
  3. Step 3: Cross multiply
    28,623.17x = 42,879.40 × 16,105.16
  4. Step 4: Simplify right side
    28,623.17x = 690,579,597.70
  5. Step 5: Solve for x
    x = 690,579,597.70/28,623.17
  6. Step 6: Final answer
    x = 24,126.59

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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.