Home / 21,383.02-29,506.01-11,821.62

Finding the Fourth Proportional to 21,383.02, 29,506.01 and 11,821.62

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Solution

The fourth proportional to 21,383.02, 29,506.01 and 11,821.62 is: 16,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.02 : 29,506.01 = 11,821.62 : x
  2. Step 2: Convert to fraction form
    21,383.02/29,506.01 = 11,821.62/x
  3. Step 3: Cross multiply
    21,383.02x = 29,506.01 × 11,821.62
  4. Step 4: Simplify right side
    21,383.02x = 348,808,837.94
  5. Step 5: Solve for x
    x = 348,808,837.94/21,383.02
  6. Step 6: Final answer
    x = 16,312.42

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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.