Home / 18,828.47-25,982.42-10,330.40

Finding the Fourth Proportional to 18,828.47, 25,982.42 and 10,330.40

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Solution

The fourth proportional to 18,828.47, 25,982.42 and 10,330.40 is: 14,255.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.47 : 25,982.42 = 10,330.40 : x
  2. Step 2: Convert to fraction form
    18,828.47/25,982.42 = 10,330.40/x
  3. Step 3: Cross multiply
    18,828.47x = 25,982.42 × 10,330.40
  4. Step 4: Simplify right side
    18,828.47x = 268,408,804.87
  5. Step 5: Solve for x
    x = 268,408,804.87/18,828.47
  6. Step 6: Final answer
    x = 14,255.47

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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.