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Finding the Fourth Proportional to 19,783.48, 27,302.52 and 11,400.52

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Solution

The fourth proportional to 19,783.48, 27,302.52 and 11,400.52 is: 15,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.48 : 27,302.52 = 11,400.52 : x
  2. Step 2: Convert to fraction form
    19,783.48/27,302.52 = 11,400.52/x
  3. Step 3: Cross multiply
    19,783.48x = 27,302.52 × 11,400.52
  4. Step 4: Simplify right side
    19,783.48x = 311,262,925.31
  5. Step 5: Solve for x
    x = 311,262,925.31/19,783.48
  6. Step 6: Final answer
    x = 15,733.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.