Home / 30,579.04-42,192.66-19,984.24

Finding the Fourth Proportional to 30,579.04, 42,192.66 and 19,984.24

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Solution

The fourth proportional to 30,579.04, 42,192.66 and 19,984.24 is: 27,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.04 : 42,192.66 = 19,984.24 : x
  2. Step 2: Convert to fraction form
    30,579.04/42,192.66 = 19,984.24/x
  3. Step 3: Cross multiply
    30,579.04x = 42,192.66 × 19,984.24
  4. Step 4: Simplify right side
    30,579.04x = 843,188,243.68
  5. Step 5: Solve for x
    x = 843,188,243.68/30,579.04
  6. Step 6: Final answer
    x = 27,574.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.