Home / 27,845.58-38,428.65-15,270.33

Finding the Fourth Proportional to 27,845.58, 38,428.65 and 15,270.33

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Solution

The fourth proportional to 27,845.58, 38,428.65 and 15,270.33 is: 21,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.58 : 38,428.65 = 15,270.33 : x
  2. Step 2: Convert to fraction form
    27,845.58/38,428.65 = 15,270.33/x
  3. Step 3: Cross multiply
    27,845.58x = 38,428.65 × 15,270.33
  4. Step 4: Simplify right side
    27,845.58x = 586,818,166.95
  5. Step 5: Solve for x
    x = 586,818,166.95/27,845.58
  6. Step 6: Final answer
    x = 21,074.01

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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.