Home / 38,636.12-57,878.97-28,486.01

Finding the Fourth Proportional to 38,636.12, 57,878.97 and 28,486.01

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Solution

The fourth proportional to 38,636.12, 57,878.97 and 28,486.01 is: 42,673.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,636.12 : 57,878.97 = 28,486.01 : x
  2. Step 2: Convert to fraction form
    38,636.12/57,878.97 = 28,486.01/x
  3. Step 3: Cross multiply
    38,636.12x = 57,878.97 × 28,486.01
  4. Step 4: Simplify right side
    38,636.12x = 1,648,740,628.81
  5. Step 5: Solve for x
    x = 1,648,740,628.81/38,636.12
  6. Step 6: Final answer
    x = 42,673.56

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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.