Home / 21,037.64-29,031.54-11,477.12

Finding the Fourth Proportional to 21,037.64, 29,031.54 and 11,477.12

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Solution

The fourth proportional to 21,037.64, 29,031.54 and 11,477.12 is: 15,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037.64 : 29,031.54 = 11,477.12 : x
  2. Step 2: Convert to fraction form
    21,037.64/29,031.54 = 11,477.12/x
  3. Step 3: Cross multiply
    21,037.64x = 29,031.54 × 11,477.12
  4. Step 4: Simplify right side
    21,037.64x = 333,198,468.36
  5. Step 5: Solve for x
    x = 333,198,468.36/21,037.64
  6. Step 6: Final answer
    x = 15,838.21

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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.