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Finding the Fourth Proportional to 30,539.71, 45,810.95 and 8,352.59

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Solution

The fourth proportional to 30,539.71, 45,810.95 and 8,352.59 is: 12,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.71 : 45,810.95 = 8,352.59 : x
  2. Step 2: Convert to fraction form
    30,539.71/45,810.95 = 8,352.59/x
  3. Step 3: Cross multiply
    30,539.71x = 45,810.95 × 8,352.59
  4. Step 4: Simplify right side
    30,539.71x = 382,640,155.62
  5. Step 5: Solve for x
    x = 382,640,155.62/30,539.71
  6. Step 6: Final answer
    x = 12,529.27

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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.