Home / 25,631.84-38,367.77-18,885.06

Finding the Fourth Proportional to 25,631.84, 38,367.77 and 18,885.06

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Solution

The fourth proportional to 25,631.84, 38,367.77 and 18,885.06 is: 28,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.84 : 38,367.77 = 18,885.06 : x
  2. Step 2: Convert to fraction form
    25,631.84/38,367.77 = 18,885.06/x
  3. Step 3: Cross multiply
    25,631.84x = 38,367.77 × 18,885.06
  4. Step 4: Simplify right side
    25,631.84x = 724,577,544.09
  5. Step 5: Solve for x
    x = 724,577,544.09/25,631.84
  6. Step 6: Final answer
    x = 28,268.65

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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.