Home / 30,557.36-45,812.04-20,573.12

Finding the Fourth Proportional to 30,557.36, 45,812.04 and 20,573.12

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Solution

The fourth proportional to 30,557.36, 45,812.04 and 20,573.12 is: 30,843.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,557.36 : 45,812.04 = 20,573.12 : x
  2. Step 2: Convert to fraction form
    30,557.36/45,812.04 = 20,573.12/x
  3. Step 3: Cross multiply
    30,557.36x = 45,812.04 × 20,573.12
  4. Step 4: Simplify right side
    30,557.36x = 942,496,596.36
  5. Step 5: Solve for x
    x = 942,496,596.36/30,557.36
  6. Step 6: Final answer
    x = 30,843.52

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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.