Home / 27,893.84-38,493.77-15,318.59

Finding the Fourth Proportional to 27,893.84, 38,493.77 and 15,318.59

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Solution

The fourth proportional to 27,893.84, 38,493.77 and 15,318.59 is: 21,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.84 : 38,493.77 = 15,318.59 : x
  2. Step 2: Convert to fraction form
    27,893.84/38,493.77 = 15,318.59/x
  3. Step 3: Cross multiply
    27,893.84x = 38,493.77 × 15,318.59
  4. Step 4: Simplify right side
    27,893.84x = 589,670,011.12
  5. Step 5: Solve for x
    x = 589,670,011.12/27,893.84
  6. Step 6: Final answer
    x = 21,139.80

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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.