Home / 25,359.36-38,055.36-13,680.64

Finding the Fourth Proportional to 25,359.36, 38,055.36 and 13,680.64

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Solution

The fourth proportional to 25,359.36, 38,055.36 and 13,680.64 is: 20,529.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,359.36 : 38,055.36 = 13,680.64 : x
  2. Step 2: Convert to fraction form
    25,359.36/38,055.36 = 13,680.64/x
  3. Step 3: Cross multiply
    25,359.36x = 38,055.36 × 13,680.64
  4. Step 4: Simplify right side
    25,359.36x = 520,621,680.23
  5. Step 5: Solve for x
    x = 520,621,680.23/25,359.36
  6. Step 6: Final answer
    x = 20,529.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.