Home / 28,066.82-42,078.16-14,019.60

Finding the Fourth Proportional to 28,066.82, 42,078.16 and 14,019.60

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Solution

The fourth proportional to 28,066.82, 42,078.16 and 14,019.60 is: 21,018.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.82 : 42,078.16 = 14,019.60 : x
  2. Step 2: Convert to fraction form
    28,066.82/42,078.16 = 14,019.60/x
  3. Step 3: Cross multiply
    28,066.82x = 42,078.16 × 14,019.60
  4. Step 4: Simplify right side
    28,066.82x = 589,918,971.94
  5. Step 5: Solve for x
    x = 589,918,971.94/28,066.82
  6. Step 6: Final answer
    x = 21,018.38

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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.