Home / 25,786.40-38,681.60-10,995.42

Finding the Fourth Proportional to 25,786.40, 38,681.60 and 10,995.42

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Solution

The fourth proportional to 25,786.40, 38,681.60 and 10,995.42 is: 16,493.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.40 : 38,681.60 = 10,995.42 : x
  2. Step 2: Convert to fraction form
    25,786.40/38,681.60 = 10,995.42/x
  3. Step 3: Cross multiply
    25,786.40x = 38,681.60 × 10,995.42
  4. Step 4: Simplify right side
    25,786.40x = 425,320,438.27
  5. Step 5: Solve for x
    x = 425,320,438.27/25,786.40
  6. Step 6: Final answer
    x = 16,493.98

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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.