Home / 40,124.42-55,370.82-21,975.15

Finding the Fourth Proportional to 40,124.42, 55,370.82 and 21,975.15

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Solution

The fourth proportional to 40,124.42, 55,370.82 and 21,975.15 is: 30,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,124.42 : 55,370.82 = 21,975.15 : x
  2. Step 2: Convert to fraction form
    40,124.42/55,370.82 = 21,975.15/x
  3. Step 3: Cross multiply
    40,124.42x = 55,370.82 × 21,975.15
  4. Step 4: Simplify right side
    40,124.42x = 1,216,782,075.12
  5. Step 5: Solve for x
    x = 1,216,782,075.12/40,124.42
  6. Step 6: Final answer
    x = 30,325.23

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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.