Home / 15,621.89-23,434.64-5,091.48

Finding the Fourth Proportional to 15,621.89, 23,434.64 and 5,091.48

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Solution

The fourth proportional to 15,621.89, 23,434.64 and 5,091.48 is: 7,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.89 : 23,434.64 = 5,091.48 : x
  2. Step 2: Convert to fraction form
    15,621.89/23,434.64 = 5,091.48/x
  3. Step 3: Cross multiply
    15,621.89x = 23,434.64 × 5,091.48
  4. Step 4: Simplify right side
    15,621.89x = 119,316,975.41
  5. Step 5: Solve for x
    x = 119,316,975.41/15,621.89
  6. Step 6: Final answer
    x = 7,637.81

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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.