Home / 18,541.93-25,563.09-15,343.45

Finding the Fourth Proportional to 18,541.93, 25,563.09 and 15,343.45

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Solution

The fourth proportional to 18,541.93, 25,563.09 and 15,343.45 is: 21,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541.93 : 25,563.09 = 15,343.45 : x
  2. Step 2: Convert to fraction form
    18,541.93/25,563.09 = 15,343.45/x
  3. Step 3: Cross multiply
    18,541.93x = 25,563.09 × 15,343.45
  4. Step 4: Simplify right side
    18,541.93x = 392,225,993.26
  5. Step 5: Solve for x
    x = 392,225,993.26/18,541.93
  6. Step 6: Final answer
    x = 21,153.46

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1.5x scale

Why These Related Problems?

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