Home / 27,870.39-38,463.63-15,297.57

Finding the Fourth Proportional to 27,870.39, 38,463.63 and 15,297.57

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Solution

The fourth proportional to 27,870.39, 38,463.63 and 15,297.57 is: 21,112.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,870.39 : 38,463.63 = 15,297.57 : x
  2. Step 2: Convert to fraction form
    27,870.39/38,463.63 = 15,297.57/x
  3. Step 3: Cross multiply
    27,870.39x = 38,463.63 × 15,297.57
  4. Step 4: Simplify right side
    27,870.39x = 588,400,072.38
  5. Step 5: Solve for x
    x = 588,400,072.38/27,870.39
  6. Step 6: Final answer
    x = 21,112.01

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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.