Home / 21,323.04-29,428.08-11,894.88

Finding the Fourth Proportional to 21,323.04, 29,428.08 and 11,894.88

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Solution

The fourth proportional to 21,323.04, 29,428.08 and 11,894.88 is: 16,416.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.04 : 29,428.08 = 11,894.88 : x
  2. Step 2: Convert to fraction form
    21,323.04/29,428.08 = 11,894.88/x
  3. Step 3: Cross multiply
    21,323.04x = 29,428.08 × 11,894.88
  4. Step 4: Simplify right side
    21,323.04x = 350,043,480.23
  5. Step 5: Solve for x
    x = 350,043,480.23/21,323.04
  6. Step 6: Final answer
    x = 16,416.21

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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.