Home / 20,713.02-28,580.04-12,217.82

Finding the Fourth Proportional to 20,713.02, 28,580.04 and 12,217.82

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Solution

The fourth proportional to 20,713.02, 28,580.04 and 12,217.82 is: 16,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.02 : 28,580.04 = 12,217.82 : x
  2. Step 2: Convert to fraction form
    20,713.02/28,580.04 = 12,217.82/x
  3. Step 3: Cross multiply
    20,713.02x = 28,580.04 × 12,217.82
  4. Step 4: Simplify right side
    20,713.02x = 349,185,641.41
  5. Step 5: Solve for x
    x = 349,185,641.41/20,713.02
  6. Step 6: Final answer
    x = 16,858.27

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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.