Home / 28,359.96-39,114.76-18,290.04

Finding the Fourth Proportional to 28,359.96, 39,114.76 and 18,290.04

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Solution

The fourth proportional to 28,359.96, 39,114.76 and 18,290.04 is: 25,226.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.96 : 39,114.76 = 18,290.04 : x
  2. Step 2: Convert to fraction form
    28,359.96/39,114.76 = 18,290.04/x
  3. Step 3: Cross multiply
    28,359.96x = 39,114.76 × 18,290.04
  4. Step 4: Simplify right side
    28,359.96x = 715,410,524.99
  5. Step 5: Solve for x
    x = 715,410,524.99/28,359.96
  6. Step 6: Final answer
    x = 25,226.08

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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.