Home / 30,584.04-42,199.56-19,989.24

Finding the Fourth Proportional to 30,584.04, 42,199.56 and 19,989.24

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Solution

The fourth proportional to 30,584.04, 42,199.56 and 19,989.24 is: 27,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,584.04 : 42,199.56 = 19,989.24 : x
  2. Step 2: Convert to fraction form
    30,584.04/42,199.56 = 19,989.24/x
  3. Step 3: Cross multiply
    30,584.04x = 42,199.56 × 19,989.24
  4. Step 4: Simplify right side
    30,584.04x = 843,537,132.73
  5. Step 5: Solve for x
    x = 843,537,132.73/30,584.04
  6. Step 6: Final answer
    x = 27,580.96

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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.