Home / 25,809.40-35,616.78-14,631.80

Finding the Fourth Proportional to 25,809.40, 35,616.78 and 14,631.80

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Solution

The fourth proportional to 25,809.40, 35,616.78 and 14,631.80 is: 20,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,809.40 : 35,616.78 = 14,631.80 : x
  2. Step 2: Convert to fraction form
    25,809.40/35,616.78 = 14,631.80/x
  3. Step 3: Cross multiply
    25,809.40x = 35,616.78 × 14,631.80
  4. Step 4: Simplify right side
    25,809.40x = 521,137,601.60
  5. Step 5: Solve for x
    x = 521,137,601.60/25,809.40
  6. Step 6: Final answer
    x = 20,191.78

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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.