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Finding the Fourth Proportional to 39,329.80, 58,878.84 and 25,978.32

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Solution

The fourth proportional to 39,329.80, 58,878.84 and 25,978.32 is: 38,890.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,329.80 : 58,878.84 = 25,978.32 : x
  2. Step 2: Convert to fraction form
    39,329.80/58,878.84 = 25,978.32/x
  3. Step 3: Cross multiply
    39,329.80x = 58,878.84 × 25,978.32
  4. Step 4: Simplify right side
    39,329.80x = 1,529,573,346.75
  5. Step 5: Solve for x
    x = 1,529,573,346.75/39,329.80
  6. Step 6: Final answer
    x = 38,890.95

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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.