Home / 30,409.90-45,626.19-18,587.95

Finding the Fourth Proportional to 30,409.90, 45,626.19 and 18,587.95

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Solution

The fourth proportional to 30,409.90, 45,626.19 and 18,587.95 is: 27,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,409.90 : 45,626.19 = 18,587.95 : x
  2. Step 2: Convert to fraction form
    30,409.90/45,626.19 = 18,587.95/x
  3. Step 3: Cross multiply
    30,409.90x = 45,626.19 × 18,587.95
  4. Step 4: Simplify right side
    30,409.90x = 848,097,338.41
  5. Step 5: Solve for x
    x = 848,097,338.41/30,409.90
  6. Step 6: Final answer
    x = 27,888.86

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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.