Home / 55,401.84-83,028.24-20,308.32

Finding the Fourth Proportional to 55,401.84, 83,028.24 and 20,308.32

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Solution

The fourth proportional to 55,401.84, 83,028.24 and 20,308.32 is: 30,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,401.84 : 83,028.24 = 20,308.32 : x
  2. Step 2: Convert to fraction form
    55,401.84/83,028.24 = 20,308.32/x
  3. Step 3: Cross multiply
    55,401.84x = 83,028.24 × 20,308.32
  4. Step 4: Simplify right side
    55,401.84x = 1,686,164,066.96
  5. Step 5: Solve for x
    x = 1,686,164,066.96/55,401.84
  6. Step 6: Final answer
    x = 30,435.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.