Home / 28,784.57-43,188.81-13,784.14

Finding the Fourth Proportional to 28,784.57, 43,188.81 and 13,784.14

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Solution

The fourth proportional to 28,784.57, 43,188.81 and 13,784.14 is: 20,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.57 : 43,188.81 = 13,784.14 : x
  2. Step 2: Convert to fraction form
    28,784.57/43,188.81 = 13,784.14/x
  3. Step 3: Cross multiply
    28,784.57x = 43,188.81 × 13,784.14
  4. Step 4: Simplify right side
    28,784.57x = 595,320,442.95
  5. Step 5: Solve for x
    x = 595,320,442.95/28,784.57
  6. Step 6: Final answer
    x = 20,681.93

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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.