Home / 38,645.50-57,984.93-20,872.63

Finding the Fourth Proportional to 38,645.50, 57,984.93 and 20,872.63

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Solution

The fourth proportional to 38,645.50, 57,984.93 and 20,872.63 is: 31,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,645.50 : 57,984.93 = 20,872.63 : x
  2. Step 2: Convert to fraction form
    38,645.50/57,984.93 = 20,872.63/x
  3. Step 3: Cross multiply
    38,645.50x = 57,984.93 × 20,872.63
  4. Step 4: Simplify right side
    38,645.50x = 1,210,297,595.18
  5. Step 5: Solve for x
    x = 1,210,297,595.18/38,645.50
  6. Step 6: Final answer
    x = 31,317.94

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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.