Home / 25,783.36-38,688.08-11,942.08

Finding the Fourth Proportional to 25,783.36, 38,688.08 and 11,942.08

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Solution

The fourth proportional to 25,783.36, 38,688.08 and 11,942.08 is: 17,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.36 : 38,688.08 = 11,942.08 : x
  2. Step 2: Convert to fraction form
    25,783.36/38,688.08 = 11,942.08/x
  3. Step 3: Cross multiply
    25,783.36x = 38,688.08 × 11,942.08
  4. Step 4: Simplify right side
    25,783.36x = 462,016,146.41
  5. Step 5: Solve for x
    x = 462,016,146.41/25,783.36
  6. Step 6: Final answer
    x = 17,919.16

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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.