Home / 28,247.26-38,981.10-16,311.70

Finding the Fourth Proportional to 28,247.26, 38,981.10 and 16,311.70

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Solution

The fourth proportional to 28,247.26, 38,981.10 and 16,311.70 is: 22,510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.26 : 38,981.10 = 16,311.70 : x
  2. Step 2: Convert to fraction form
    28,247.26/38,981.10 = 16,311.70/x
  3. Step 3: Cross multiply
    28,247.26x = 38,981.10 × 16,311.70
  4. Step 4: Simplify right side
    28,247.26x = 635,848,008.87
  5. Step 5: Solve for x
    x = 635,848,008.87/28,247.26
  6. Step 6: Final answer
    x = 22,510.08

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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.