Home / 19,825.86-27,368.38-13,880.84

Finding the Fourth Proportional to 19,825.86, 27,368.38 and 13,880.84

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Solution

The fourth proportional to 19,825.86, 27,368.38 and 13,880.84 is: 19,161.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,825.86 : 27,368.38 = 13,880.84 : x
  2. Step 2: Convert to fraction form
    19,825.86/27,368.38 = 13,880.84/x
  3. Step 3: Cross multiply
    19,825.86x = 27,368.38 × 13,880.84
  4. Step 4: Simplify right side
    19,825.86x = 379,896,103.84
  5. Step 5: Solve for x
    x = 379,896,103.84/19,825.86
  6. Step 6: Final answer
    x = 19,161.65

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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.