Home / 21,833.45-30,130.14-11,897.45

Finding the Fourth Proportional to 21,833.45, 30,130.14 and 11,897.45

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Solution

The fourth proportional to 21,833.45, 30,130.14 and 11,897.45 is: 16,418.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,833.45 : 30,130.14 = 11,897.45 : x
  2. Step 2: Convert to fraction form
    21,833.45/30,130.14 = 11,897.45/x
  3. Step 3: Cross multiply
    21,833.45x = 30,130.14 × 11,897.45
  4. Step 4: Simplify right side
    21,833.45x = 358,471,683.49
  5. Step 5: Solve for x
    x = 358,471,683.49/21,833.45
  6. Step 6: Final answer
    x = 16,418.47

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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.