Home / 21,727.04-29,984.80-12,295.60

Finding the Fourth Proportional to 21,727.04, 29,984.80 and 12,295.60

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Solution

The fourth proportional to 21,727.04, 29,984.80 and 12,295.60 is: 16,968.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.04 : 29,984.80 = 12,295.60 : x
  2. Step 2: Convert to fraction form
    21,727.04/29,984.80 = 12,295.60/x
  3. Step 3: Cross multiply
    21,727.04x = 29,984.80 × 12,295.60
  4. Step 4: Simplify right side
    21,727.04x = 368,681,106.88
  5. Step 5: Solve for x
    x = 368,681,106.88/21,727.04
  6. Step 6: Final answer
    x = 16,968.77

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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.