Home / 18,323.45-25,264.19-15,485.81

Finding the Fourth Proportional to 18,323.45, 25,264.19 and 15,485.81

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Solution

The fourth proportional to 18,323.45, 25,264.19 and 15,485.81 is: 21,351.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.45 : 25,264.19 = 15,485.81 : x
  2. Step 2: Convert to fraction form
    18,323.45/25,264.19 = 15,485.81/x
  3. Step 3: Cross multiply
    18,323.45x = 25,264.19 × 15,485.81
  4. Step 4: Simplify right side
    18,323.45x = 391,236,548.02
  5. Step 5: Solve for x
    x = 391,236,548.02/18,323.45
  6. Step 6: Final answer
    x = 21,351.69

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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.