Home / 40,376.05-55,683.48-28,270.33

Finding the Fourth Proportional to 40,376.05, 55,683.48 and 28,270.33

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Solution

The fourth proportional to 40,376.05, 55,683.48 and 28,270.33 is: 38,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,376.05 : 55,683.48 = 28,270.33 : x
  2. Step 2: Convert to fraction form
    40,376.05/55,683.48 = 28,270.33/x
  3. Step 3: Cross multiply
    40,376.05x = 55,683.48 × 28,270.33
  4. Step 4: Simplify right side
    40,376.05x = 1,574,190,355.15
  5. Step 5: Solve for x
    x = 1,574,190,355.15/40,376.05
  6. Step 6: Final answer
    x = 38,988.22

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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.