Home / 25,310.84-34,928.79-13,981.07

Finding the Fourth Proportional to 25,310.84, 34,928.79 and 13,981.07

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Solution

The fourth proportional to 25,310.84, 34,928.79 and 13,981.07 is: 19,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,310.84 : 34,928.79 = 13,981.07 : x
  2. Step 2: Convert to fraction form
    25,310.84/34,928.79 = 13,981.07/x
  3. Step 3: Cross multiply
    25,310.84x = 34,928.79 × 13,981.07
  4. Step 4: Simplify right side
    25,310.84x = 488,341,683.36
  5. Step 5: Solve for x
    x = 488,341,683.36/25,310.84
  6. Step 6: Final answer
    x = 19,293.78

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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.