Home / 21,171.04-29,205.02-12,669.08

Finding the Fourth Proportional to 21,171.04, 29,205.02 and 12,669.08

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Solution

The fourth proportional to 21,171.04, 29,205.02 and 12,669.08 is: 17,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,171.04 : 29,205.02 = 12,669.08 : x
  2. Step 2: Convert to fraction form
    21,171.04/29,205.02 = 12,669.08/x
  3. Step 3: Cross multiply
    21,171.04x = 29,205.02 × 12,669.08
  4. Step 4: Simplify right side
    21,171.04x = 370,000,620.43
  5. Step 5: Solve for x
    x = 370,000,620.43/21,171.04
  6. Step 6: Final answer
    x = 17,476.74

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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.