Home / 25,458.75-35,133.08-15,522.75

Finding the Fourth Proportional to 25,458.75, 35,133.08 and 15,522.75

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Solution

The fourth proportional to 25,458.75, 35,133.08 and 15,522.75 is: 21,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.75 : 35,133.08 = 15,522.75 : x
  2. Step 2: Convert to fraction form
    25,458.75/35,133.08 = 15,522.75/x
  3. Step 3: Cross multiply
    25,458.75x = 35,133.08 × 15,522.75
  4. Step 4: Simplify right side
    25,458.75x = 545,361,939.96
  5. Step 5: Solve for x
    x = 545,361,939.96/25,458.75
  6. Step 6: Final answer
    x = 21,421.40

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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.