Home / 25,865.56-38,795.40-7,148.25

Finding the Fourth Proportional to 25,865.56, 38,795.40 and 7,148.25

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Solution

The fourth proportional to 25,865.56, 38,795.40 and 7,148.25 is: 10,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,865.56 : 38,795.40 = 7,148.25 : x
  2. Step 2: Convert to fraction form
    25,865.56/38,795.40 = 7,148.25/x
  3. Step 3: Cross multiply
    25,865.56x = 38,795.40 × 7,148.25
  4. Step 4: Simplify right side
    25,865.56x = 277,319,218.05
  5. Step 5: Solve for x
    x = 277,319,218.05/25,865.56
  6. Step 6: Final answer
    x = 10,721.56

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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.