Home / 17,928.40-26,890.69-4,782.10

Finding the Fourth Proportional to 17,928.40, 26,890.69 and 4,782.10

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Solution

The fourth proportional to 17,928.40, 26,890.69 and 4,782.10 is: 7,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,928.40 : 26,890.69 = 4,782.10 : x
  2. Step 2: Convert to fraction form
    17,928.40/26,890.69 = 4,782.10/x
  3. Step 3: Cross multiply
    17,928.40x = 26,890.69 × 4,782.10
  4. Step 4: Simplify right side
    17,928.40x = 128,593,968.65
  5. Step 5: Solve for x
    x = 128,593,968.65/17,928.40
  6. Step 6: Final answer
    x = 7,172.64

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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.