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Finding the Fourth Proportional to 19,074.16, 28,605.12 and 17,830.32

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Solution

The fourth proportional to 19,074.16, 28,605.12 and 17,830.32 is: 26,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.16 : 28,605.12 = 17,830.32 : x
  2. Step 2: Convert to fraction form
    19,074.16/28,605.12 = 17,830.32/x
  3. Step 3: Cross multiply
    19,074.16x = 28,605.12 × 17,830.32
  4. Step 4: Simplify right side
    19,074.16x = 510,038,443.24
  5. Step 5: Solve for x
    x = 510,038,443.24/19,074.16
  6. Step 6: Final answer
    x = 26,739.76

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.