Home / 30,453.28-45,693.56-19,357.09

Finding the Fourth Proportional to 30,453.28, 45,693.56 and 19,357.09

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Solution

The fourth proportional to 30,453.28, 45,693.56 and 19,357.09 is: 29,044.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.28 : 45,693.56 = 19,357.09 : x
  2. Step 2: Convert to fraction form
    30,453.28/45,693.56 = 19,357.09/x
  3. Step 3: Cross multiply
    30,453.28x = 45,693.56 × 19,357.09
  4. Step 4: Simplify right side
    30,453.28x = 884,494,287.50
  5. Step 5: Solve for x
    x = 884,494,287.50/30,453.28
  6. Step 6: Final answer
    x = 29,044.31

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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.