Home / 28,208.21-42,314.40-9,488.21

Finding the Fourth Proportional to 28,208.21, 42,314.40 and 9,488.21

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Solution

The fourth proportional to 28,208.21, 42,314.40 and 9,488.21 is: 14,233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.21 : 42,314.40 = 9,488.21 : x
  2. Step 2: Convert to fraction form
    28,208.21/42,314.40 = 9,488.21/x
  3. Step 3: Cross multiply
    28,208.21x = 42,314.40 × 9,488.21
  4. Step 4: Simplify right side
    28,208.21x = 401,487,701.65
  5. Step 5: Solve for x
    x = 401,487,701.65/28,208.21
  6. Step 6: Final answer
    x = 14,233.01

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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.