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Finding the Fourth Proportional to 28,271.91, 42,409.04 and 9,553.85

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Solution

The fourth proportional to 28,271.91, 42,409.04 and 9,553.85 is: 14,331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.91 : 42,409.04 = 9,553.85 : x
  2. Step 2: Convert to fraction form
    28,271.91/42,409.04 = 9,553.85/x
  3. Step 3: Cross multiply
    28,271.91x = 42,409.04 × 9,553.85
  4. Step 4: Simplify right side
    28,271.91x = 405,169,586.63
  5. Step 5: Solve for x
    x = 405,169,586.63/28,271.91
  6. Step 6: Final answer
    x = 14,331.17

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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.