Home / 21,411.26-29,547.54-11,982.04

Finding the Fourth Proportional to 21,411.26, 29,547.54 and 11,982.04

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Solution

The fourth proportional to 21,411.26, 29,547.54 and 11,982.04 is: 16,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.26 : 29,547.54 = 11,982.04 : x
  2. Step 2: Convert to fraction form
    21,411.26/29,547.54 = 11,982.04/x
  3. Step 3: Cross multiply
    21,411.26x = 29,547.54 × 11,982.04
  4. Step 4: Simplify right side
    21,411.26x = 354,039,806.18
  5. Step 5: Solve for x
    x = 354,039,806.18/21,411.26
  6. Step 6: Final answer
    x = 16,535.22

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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.