Home / 21,296.13-29,388.63-12,348.84

Finding the Fourth Proportional to 21,296.13, 29,388.63 and 12,348.84

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Solution

The fourth proportional to 21,296.13, 29,388.63 and 12,348.84 is: 17,041.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296.13 : 29,388.63 = 12,348.84 : x
  2. Step 2: Convert to fraction form
    21,296.13/29,388.63 = 12,348.84/x
  3. Step 3: Cross multiply
    21,296.13x = 29,388.63 × 12,348.84
  4. Step 4: Simplify right side
    21,296.13x = 362,915,489.69
  5. Step 5: Solve for x
    x = 362,915,489.69/21,296.13
  6. Step 6: Final answer
    x = 17,041.38

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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.