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Finding the Fourth Proportional to 30,718.72, 46,078.10 and 8,532.10

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Solution

The fourth proportional to 30,718.72, 46,078.10 and 8,532.10 is: 12,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718.72 : 46,078.10 = 8,532.10 : x
  2. Step 2: Convert to fraction form
    30,718.72/46,078.10 = 8,532.10/x
  3. Step 3: Cross multiply
    30,718.72x = 46,078.10 × 8,532.10
  4. Step 4: Simplify right side
    30,718.72x = 393,142,957.01
  5. Step 5: Solve for x
    x = 393,142,957.01/30,718.72
  6. Step 6: Final answer
    x = 12,798.16

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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.