Home / 20,584.73-28,390.02-12,621.35

Finding the Fourth Proportional to 20,584.73, 28,390.02 and 12,621.35

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Solution

The fourth proportional to 20,584.73, 28,390.02 and 12,621.35 is: 17,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.73 : 28,390.02 = 12,621.35 : x
  2. Step 2: Convert to fraction form
    20,584.73/28,390.02 = 12,621.35/x
  3. Step 3: Cross multiply
    20,584.73x = 28,390.02 × 12,621.35
  4. Step 4: Simplify right side
    20,584.73x = 358,320,378.93
  5. Step 5: Solve for x
    x = 358,320,378.93/20,584.73
  6. Step 6: Final answer
    x = 17,407.10

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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.