Home / 25,113.20-34,656.64-13,783.75

Finding the Fourth Proportional to 25,113.20, 34,656.64 and 13,783.75

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Solution

The fourth proportional to 25,113.20, 34,656.64 and 13,783.75 is: 19,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,113.20 : 34,656.64 = 13,783.75 : x
  2. Step 2: Convert to fraction form
    25,113.20/34,656.64 = 13,783.75/x
  3. Step 3: Cross multiply
    25,113.20x = 34,656.64 × 13,783.75
  4. Step 4: Simplify right side
    25,113.20x = 477,698,340.50
  5. Step 5: Solve for x
    x = 477,698,340.50/25,113.20
  6. Step 6: Final answer
    x = 19,021.81

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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.