Home / 25,404.12-35,074.80-15,858.54

Finding the Fourth Proportional to 25,404.12, 35,074.80 and 15,858.54

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Solution

The fourth proportional to 25,404.12, 35,074.80 and 15,858.54 is: 21,895.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,404.12 : 35,074.80 = 15,858.54 : x
  2. Step 2: Convert to fraction form
    25,404.12/35,074.80 = 15,858.54/x
  3. Step 3: Cross multiply
    25,404.12x = 35,074.80 × 15,858.54
  4. Step 4: Simplify right side
    25,404.12x = 556,235,118.79
  5. Step 5: Solve for x
    x = 556,235,118.79/25,404.12
  6. Step 6: Final answer
    x = 21,895.47

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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.