Home / 21,256.92-29,333.76-11,825.28

Finding the Fourth Proportional to 21,256.92, 29,333.76 and 11,825.28

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Solution

The fourth proportional to 21,256.92, 29,333.76 and 11,825.28 is: 16,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.92 : 29,333.76 = 11,825.28 : x
  2. Step 2: Convert to fraction form
    21,256.92/29,333.76 = 11,825.28/x
  3. Step 3: Cross multiply
    21,256.92x = 29,333.76 × 11,825.28
  4. Step 4: Simplify right side
    21,256.92x = 346,879,925.45
  5. Step 5: Solve for x
    x = 346,879,925.45/21,256.92
  6. Step 6: Final answer
    x = 16,318.45

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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.