Home / 28,609.93-39,505.16-18,555.46

Finding the Fourth Proportional to 28,609.93, 39,505.16 and 18,555.46

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Solution

The fourth proportional to 28,609.93, 39,505.16 and 18,555.46 is: 25,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.93 : 39,505.16 = 18,555.46 : x
  2. Step 2: Convert to fraction form
    28,609.93/39,505.16 = 18,555.46/x
  3. Step 3: Cross multiply
    28,609.93x = 39,505.16 × 18,555.46
  4. Step 4: Simplify right side
    28,609.93x = 733,036,360.85
  5. Step 5: Solve for x
    x = 733,036,360.85/28,609.93
  6. Step 6: Final answer
    x = 25,621.74

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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.