Home / 30,296.86-45,430.18-19,195.09

Finding the Fourth Proportional to 30,296.86, 45,430.18 and 19,195.09

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Solution

The fourth proportional to 30,296.86, 45,430.18 and 19,195.09 is: 28,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,296.86 : 45,430.18 = 19,195.09 : x
  2. Step 2: Convert to fraction form
    30,296.86/45,430.18 = 19,195.09/x
  3. Step 3: Cross multiply
    30,296.86x = 45,430.18 × 19,195.09
  4. Step 4: Simplify right side
    30,296.86x = 872,036,393.82
  5. Step 5: Solve for x
    x = 872,036,393.82/30,296.86
  6. Step 6: Final answer
    x = 28,783.06

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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.