Home / 18,942.01-28,342.87-13,948.08

Finding the Fourth Proportional to 18,942.01, 28,342.87 and 13,948.08

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Solution

The fourth proportional to 18,942.01, 28,342.87 and 13,948.08 is: 20,870.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.01 : 28,342.87 = 13,948.08 : x
  2. Step 2: Convert to fraction form
    18,942.01/28,342.87 = 13,948.08/x
  3. Step 3: Cross multiply
    18,942.01x = 28,342.87 × 13,948.08
  4. Step 4: Simplify right side
    18,942.01x = 395,328,618.19
  5. Step 5: Solve for x
    x = 395,328,618.19/18,942.01
  6. Step 6: Final answer
    x = 20,870.47

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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.