Home / 40,310.84-55,570.36-28,173.64

Finding the Fourth Proportional to 40,310.84, 55,570.36 and 28,173.64

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Solution

The fourth proportional to 40,310.84, 55,570.36 and 28,173.64 is: 38,838.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,310.84 : 55,570.36 = 28,173.64 : x
  2. Step 2: Convert to fraction form
    40,310.84/55,570.36 = 28,173.64/x
  3. Step 3: Cross multiply
    40,310.84x = 55,570.36 × 28,173.64
  4. Step 4: Simplify right side
    40,310.84x = 1,565,619,317.31
  5. Step 5: Solve for x
    x = 1,565,619,317.31/40,310.84
  6. Step 6: Final answer
    x = 38,838.67

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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.