Home / 19,190.70-28,784.04-5,152.23

Finding the Fourth Proportional to 19,190.70, 28,784.04 and 5,152.23

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Solution

The fourth proportional to 19,190.70, 28,784.04 and 5,152.23 is: 7,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.70 : 28,784.04 = 5,152.23 : x
  2. Step 2: Convert to fraction form
    19,190.70/28,784.04 = 5,152.23/x
  3. Step 3: Cross multiply
    19,190.70x = 28,784.04 × 5,152.23
  4. Step 4: Simplify right side
    19,190.70x = 148,301,994.41
  5. Step 5: Solve for x
    x = 148,301,994.41/19,190.70
  6. Step 6: Final answer
    x = 7,727.81

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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.