Home / 25,783.08-35,585.46-15,172.20

Finding the Fourth Proportional to 25,783.08, 35,585.46 and 15,172.20

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Solution

The fourth proportional to 25,783.08, 35,585.46 and 15,172.20 is: 20,940.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.08 : 35,585.46 = 15,172.20 : x
  2. Step 2: Convert to fraction form
    25,783.08/35,585.46 = 15,172.20/x
  3. Step 3: Cross multiply
    25,783.08x = 35,585.46 × 15,172.20
  4. Step 4: Simplify right side
    25,783.08x = 539,909,716.21
  5. Step 5: Solve for x
    x = 539,909,716.21/25,783.08
  6. Step 6: Final answer
    x = 20,940.47

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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.