Home / 25,608.49-38,390.36-13,768.72

Finding the Fourth Proportional to 25,608.49, 38,390.36 and 13,768.72

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Solution

The fourth proportional to 25,608.49, 38,390.36 and 13,768.72 is: 20,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,608.49 : 38,390.36 = 13,768.72 : x
  2. Step 2: Convert to fraction form
    25,608.49/38,390.36 = 13,768.72/x
  3. Step 3: Cross multiply
    25,608.49x = 38,390.36 × 13,768.72
  4. Step 4: Simplify right side
    25,608.49x = 528,585,952.72
  5. Step 5: Solve for x
    x = 528,585,952.72/25,608.49
  6. Step 6: Final answer
    x = 20,641.05

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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.