Home / 28,133.03-38,788.30-18,043.67

Finding the Fourth Proportional to 28,133.03, 38,788.30 and 18,043.67

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Solution

The fourth proportional to 28,133.03, 38,788.30 and 18,043.67 is: 24,877.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.03 : 38,788.30 = 18,043.67 : x
  2. Step 2: Convert to fraction form
    28,133.03/38,788.30 = 18,043.67/x
  3. Step 3: Cross multiply
    28,133.03x = 38,788.30 × 18,043.67
  4. Step 4: Simplify right side
    28,133.03x = 699,883,404.59
  5. Step 5: Solve for x
    x = 699,883,404.59/28,133.03
  6. Step 6: Final answer
    x = 24,877.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.