Home / 21,457.41-32,028.28-19,953.24

Finding the Fourth Proportional to 21,457.41, 32,028.28 and 19,953.24

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Solution

The fourth proportional to 21,457.41, 32,028.28 and 19,953.24 is: 29,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.41 : 32,028.28 = 19,953.24 : x
  2. Step 2: Convert to fraction form
    21,457.41/32,028.28 = 19,953.24/x
  3. Step 3: Cross multiply
    21,457.41x = 32,028.28 × 19,953.24
  4. Step 4: Simplify right side
    21,457.41x = 639,067,957.63
  5. Step 5: Solve for x
    x = 639,067,957.63/21,457.41
  6. Step 6: Final answer
    x = 29,783.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.