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Finding the Fourth Proportional to 39,280.95, 58,914.95 and 18,220.14

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Solution

The fourth proportional to 39,280.95, 58,914.95 and 18,220.14 is: 27,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.95 : 58,914.95 = 18,220.14 : x
  2. Step 2: Convert to fraction form
    39,280.95/58,914.95 = 18,220.14/x
  3. Step 3: Cross multiply
    39,280.95x = 58,914.95 × 18,220.14
  4. Step 4: Simplify right side
    39,280.95x = 1,073,438,545.99
  5. Step 5: Solve for x
    x = 1,073,438,545.99/39,280.95
  6. Step 6: Final answer
    x = 27,327.20

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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.