Home / 30,879.26-42,597.72-19,529.64

Finding the Fourth Proportional to 30,879.26, 42,597.72 and 19,529.64

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Solution

The fourth proportional to 30,879.26, 42,597.72 and 19,529.64 is: 26,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,879.26 : 42,597.72 = 19,529.64 : x
  2. Step 2: Convert to fraction form
    30,879.26/42,597.72 = 19,529.64/x
  3. Step 3: Cross multiply
    30,879.26x = 42,597.72 × 19,529.64
  4. Step 4: Simplify right side
    30,879.26x = 831,918,136.42
  5. Step 5: Solve for x
    x = 831,918,136.42/30,879.26
  6. Step 6: Final answer
    x = 26,941.00

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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.