Home / 19,039.68-28,559.56-5,188.68

Finding the Fourth Proportional to 19,039.68, 28,559.56 and 5,188.68

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Solution

The fourth proportional to 19,039.68, 28,559.56 and 5,188.68 is: 7,783.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.68 : 28,559.56 = 5,188.68 : x
  2. Step 2: Convert to fraction form
    19,039.68/28,559.56 = 5,188.68/x
  3. Step 3: Cross multiply
    19,039.68x = 28,559.56 × 5,188.68
  4. Step 4: Simplify right side
    19,039.68x = 148,186,417.78
  5. Step 5: Solve for x
    x = 148,186,417.78/19,039.68
  6. Step 6: Final answer
    x = 7,783.03

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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.