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Finding the Fourth Proportional to 28,073.79, 42,111.68 and 9,097.99

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Solution

The fourth proportional to 28,073.79, 42,111.68 and 9,097.99 is: 13,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.79 : 42,111.68 = 9,097.99 : x
  2. Step 2: Convert to fraction form
    28,073.79/42,111.68 = 9,097.99/x
  3. Step 3: Cross multiply
    28,073.79x = 42,111.68 × 9,097.99
  4. Step 4: Simplify right side
    28,073.79x = 383,131,492.75
  5. Step 5: Solve for x
    x = 383,131,492.75/28,073.79
  6. Step 6: Final answer
    x = 13,647.30

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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.