Home / 19,069.40-28,601.04-5,215.16

Finding the Fourth Proportional to 19,069.40, 28,601.04 and 5,215.16

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Solution

The fourth proportional to 19,069.40, 28,601.04 and 5,215.16 is: 7,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,069.40 : 28,601.04 = 5,215.16 : x
  2. Step 2: Convert to fraction form
    19,069.40/28,601.04 = 5,215.16/x
  3. Step 3: Cross multiply
    19,069.40x = 28,601.04 × 5,215.16
  4. Step 4: Simplify right side
    19,069.40x = 149,158,999.77
  5. Step 5: Solve for x
    x = 149,158,999.77/19,069.40
  6. Step 6: Final answer
    x = 7,821.90

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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.