Home / 18,423.75-25,424.96-10,040.43

Finding the Fourth Proportional to 18,423.75, 25,424.96 and 10,040.43

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Solution

The fourth proportional to 18,423.75, 25,424.96 and 10,040.43 is: 13,855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.75 : 25,424.96 = 10,040.43 : x
  2. Step 2: Convert to fraction form
    18,423.75/25,424.96 = 10,040.43/x
  3. Step 3: Cross multiply
    18,423.75x = 25,424.96 × 10,040.43
  4. Step 4: Simplify right side
    18,423.75x = 255,277,480.93
  5. Step 5: Solve for x
    x = 255,277,480.93/18,423.75
  6. Step 6: Final answer
    x = 13,855.89

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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.