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Finding the Fourth Proportional to 23,740.79, 32,762.09 and 13,130.15

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Solution

The fourth proportional to 23,740.79, 32,762.09 and 13,130.15 is: 18,119.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,740.79 : 32,762.09 = 13,130.15 : x
  2. Step 2: Convert to fraction form
    23,740.79/32,762.09 = 13,130.15/x
  3. Step 3: Cross multiply
    23,740.79x = 32,762.09 × 13,130.15
  4. Step 4: Simplify right side
    23,740.79x = 430,170,992.20
  5. Step 5: Solve for x
    x = 430,170,992.20/23,740.79
  6. Step 6: Final answer
    x = 18,119.49

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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.