Home / 27,845.82-38,428.11-15,271.74

Finding the Fourth Proportional to 27,845.82, 38,428.11 and 15,271.74

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Solution

The fourth proportional to 27,845.82, 38,428.11 and 15,271.74 is: 21,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.82 : 38,428.11 = 15,271.74 : x
  2. Step 2: Convert to fraction form
    27,845.82/38,428.11 = 15,271.74/x
  3. Step 3: Cross multiply
    27,845.82x = 38,428.11 × 15,271.74
  4. Step 4: Simplify right side
    27,845.82x = 586,864,104.61
  5. Step 5: Solve for x
    x = 586,864,104.61/27,845.82
  6. Step 6: Final answer
    x = 21,075.48

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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.