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Finding the Fourth Proportional to 30,000.79, 44,985.79 and 17,545.15

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Solution

The fourth proportional to 30,000.79, 44,985.79 and 17,545.15 is: 26,308.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.79 : 44,985.79 = 17,545.15 : x
  2. Step 2: Convert to fraction form
    30,000.79/44,985.79 = 17,545.15/x
  3. Step 3: Cross multiply
    30,000.79x = 44,985.79 × 17,545.15
  4. Step 4: Simplify right side
    30,000.79x = 789,282,277.09
  5. Step 5: Solve for x
    x = 789,282,277.09/30,000.79
  6. Step 6: Final answer
    x = 26,308.72

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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.