Home / 25,685.51-38,554.44-13,838.78

Finding the Fourth Proportional to 25,685.51, 38,554.44 and 13,838.78

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Solution

The fourth proportional to 25,685.51, 38,554.44 and 13,838.78 is: 20,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.51 : 38,554.44 = 13,838.78 : x
  2. Step 2: Convert to fraction form
    25,685.51/38,554.44 = 13,838.78/x
  3. Step 3: Cross multiply
    25,685.51x = 38,554.44 × 13,838.78
  4. Step 4: Simplify right side
    25,685.51x = 533,546,220.41
  5. Step 5: Solve for x
    x = 533,546,220.41/25,685.51
  6. Step 6: Final answer
    x = 20,772.27

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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.