Home / 19,039.32-28,555.86-5,189.40

Finding the Fourth Proportional to 19,039.32, 28,555.86 and 5,189.40

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Solution

The fourth proportional to 19,039.32, 28,555.86 and 5,189.40 is: 7,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.32 : 28,555.86 = 5,189.40 : x
  2. Step 2: Convert to fraction form
    19,039.32/28,555.86 = 5,189.40/x
  3. Step 3: Cross multiply
    19,039.32x = 28,555.86 × 5,189.40
  4. Step 4: Simplify right side
    19,039.32x = 148,187,779.88
  5. Step 5: Solve for x
    x = 148,187,779.88/19,039.32
  6. Step 6: Final answer
    x = 7,783.25

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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.