Home / 40,319.75-55,643.15-22,415.05

Finding the Fourth Proportional to 40,319.75, 55,643.15 and 22,415.05

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Solution

The fourth proportional to 40,319.75, 55,643.15 and 22,415.05 is: 30,933.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,319.75 : 55,643.15 = 22,415.05 : x
  2. Step 2: Convert to fraction form
    40,319.75/55,643.15 = 22,415.05/x
  3. Step 3: Cross multiply
    40,319.75x = 55,643.15 × 22,415.05
  4. Step 4: Simplify right side
    40,319.75x = 1,247,243,599.12
  5. Step 5: Solve for x
    x = 1,247,243,599.12/40,319.75
  6. Step 6: Final answer
    x = 30,933.82

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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.