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Finding the Fourth Proportional to 28,750.63, 43,082.06 and 19,355.95

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Solution

The fourth proportional to 28,750.63, 43,082.06 and 19,355.95 is: 29,004.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.63 : 43,082.06 = 19,355.95 : x
  2. Step 2: Convert to fraction form
    28,750.63/43,082.06 = 19,355.95/x
  3. Step 3: Cross multiply
    28,750.63x = 43,082.06 × 19,355.95
  4. Step 4: Simplify right side
    28,750.63x = 833,894,199.26
  5. Step 5: Solve for x
    x = 833,894,199.26/28,750.63
  6. Step 6: Final answer
    x = 29,004.38

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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.