Home / 30,342.12-45,533.82-18,619.56

Finding the Fourth Proportional to 30,342.12, 45,533.82 and 18,619.56

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Solution

The fourth proportional to 30,342.12, 45,533.82 and 18,619.56 is: 27,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.12 : 45,533.82 = 18,619.56 : x
  2. Step 2: Convert to fraction form
    30,342.12/45,533.82 = 18,619.56/x
  3. Step 3: Cross multiply
    30,342.12x = 45,533.82 × 18,619.56
  4. Step 4: Simplify right side
    30,342.12x = 847,819,693.52
  5. Step 5: Solve for x
    x = 847,819,693.52/30,342.12
  6. Step 6: Final answer
    x = 27,942.01

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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.