Home / 30,028.38-45,065.67-28,486.68

Finding the Fourth Proportional to 30,028.38, 45,065.67 and 28,486.68

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Solution

The fourth proportional to 30,028.38, 45,065.67 and 28,486.68 is: 42,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,028.38 : 45,065.67 = 28,486.68 : x
  2. Step 2: Convert to fraction form
    30,028.38/45,065.67 = 28,486.68/x
  3. Step 3: Cross multiply
    30,028.38x = 45,065.67 × 28,486.68
  4. Step 4: Simplify right side
    30,028.38x = 1,283,771,320.28
  5. Step 5: Solve for x
    x = 1,283,771,320.28/30,028.38
  6. Step 6: Final answer
    x = 42,751.93

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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.