Home / 25,783.44-38,684.28-15,911.20

Finding the Fourth Proportional to 25,783.44, 38,684.28 and 15,911.20

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Solution

The fourth proportional to 25,783.44, 38,684.28 and 15,911.20 is: 23,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.44 : 38,684.28 = 15,911.20 : x
  2. Step 2: Convert to fraction form
    25,783.44/38,684.28 = 15,911.20/x
  3. Step 3: Cross multiply
    25,783.44x = 38,684.28 × 15,911.20
  4. Step 4: Simplify right side
    25,783.44x = 615,513,315.94
  5. Step 5: Solve for x
    x = 615,513,315.94/25,783.44
  6. Step 6: Final answer
    x = 23,872.43

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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.