Home / 21,448.64-32,128.68-15,908.24

Finding the Fourth Proportional to 21,448.64, 32,128.68 and 15,908.24

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Solution

The fourth proportional to 21,448.64, 32,128.68 and 15,908.24 is: 23,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.64 : 32,128.68 = 15,908.24 : x
  2. Step 2: Convert to fraction form
    21,448.64/32,128.68 = 15,908.24/x
  3. Step 3: Cross multiply
    21,448.64x = 32,128.68 × 15,908.24
  4. Step 4: Simplify right side
    21,448.64x = 511,110,752.32
  5. Step 5: Solve for x
    x = 511,110,752.32/21,448.64
  6. Step 6: Final answer
    x = 23,829.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.