Home / 19,784.03-27,302.28-10,831.38

Finding the Fourth Proportional to 19,784.03, 27,302.28 and 10,831.38

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Solution

The fourth proportional to 19,784.03, 27,302.28 and 10,831.38 is: 14,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.03 : 27,302.28 = 10,831.38 : x
  2. Step 2: Convert to fraction form
    19,784.03/27,302.28 = 10,831.38/x
  3. Step 3: Cross multiply
    19,784.03x = 27,302.28 × 10,831.38
  4. Step 4: Simplify right side
    19,784.03x = 295,721,369.55
  5. Step 5: Solve for x
    x = 295,721,369.55/19,784.03
  6. Step 6: Final answer
    x = 14,947.48

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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.