Home / 38,284.32-57,426.48-11,991.12

Finding the Fourth Proportional to 38,284.32, 57,426.48 and 11,991.12

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Solution

The fourth proportional to 38,284.32, 57,426.48 and 11,991.12 is: 17,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,284.32 : 57,426.48 = 11,991.12 : x
  2. Step 2: Convert to fraction form
    38,284.32/57,426.48 = 11,991.12/x
  3. Step 3: Cross multiply
    38,284.32x = 57,426.48 × 11,991.12
  4. Step 4: Simplify right side
    38,284.32x = 688,607,465.77
  5. Step 5: Solve for x
    x = 688,607,465.77/38,284.32
  6. Step 6: Final answer
    x = 17,986.67

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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.