Home / 27,857.04-38,441.70-15,281.52

Finding the Fourth Proportional to 27,857.04, 38,441.70 and 15,281.52

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Solution

The fourth proportional to 27,857.04, 38,441.70 and 15,281.52 is: 21,087.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.04 : 38,441.70 = 15,281.52 : x
  2. Step 2: Convert to fraction form
    27,857.04/38,441.70 = 15,281.52/x
  3. Step 3: Cross multiply
    27,857.04x = 38,441.70 × 15,281.52
  4. Step 4: Simplify right side
    27,857.04x = 587,447,607.38
  5. Step 5: Solve for x
    x = 587,447,607.38/27,857.04
  6. Step 6: Final answer
    x = 21,087.94

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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.