Home / 21,934.48-30,269.49-11,862.93

Finding the Fourth Proportional to 21,934.48, 30,269.49 and 11,862.93

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Solution

The fourth proportional to 21,934.48, 30,269.49 and 11,862.93 is: 16,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.48 : 30,269.49 = 11,862.93 : x
  2. Step 2: Convert to fraction form
    21,934.48/30,269.49 = 11,862.93/x
  3. Step 3: Cross multiply
    21,934.48x = 30,269.49 × 11,862.93
  4. Step 4: Simplify right side
    21,934.48x = 359,084,841.01
  5. Step 5: Solve for x
    x = 359,084,841.01/21,934.48
  6. Step 6: Final answer
    x = 16,370.80

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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.