Home / 25,783.80-38,679.30-10,992.60

Finding the Fourth Proportional to 25,783.80, 38,679.30 and 10,992.60

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Solution

The fourth proportional to 25,783.80, 38,679.30 and 10,992.60 is: 16,490.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.80 : 38,679.30 = 10,992.60 : x
  2. Step 2: Convert to fraction form
    25,783.80/38,679.30 = 10,992.60/x
  3. Step 3: Cross multiply
    25,783.80x = 38,679.30 × 10,992.60
  4. Step 4: Simplify right side
    25,783.80x = 425,186,073.18
  5. Step 5: Solve for x
    x = 425,186,073.18/25,783.80
  6. Step 6: Final answer
    x = 16,490.43

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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.