Home / 20,482.77-28,266.23-11,986.52

Finding the Fourth Proportional to 20,482.77, 28,266.23 and 11,986.52

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Solution

The fourth proportional to 20,482.77, 28,266.23 and 11,986.52 is: 16,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.77 : 28,266.23 = 11,986.52 : x
  2. Step 2: Convert to fraction form
    20,482.77/28,266.23 = 11,986.52/x
  3. Step 3: Cross multiply
    20,482.77x = 28,266.23 × 11,986.52
  4. Step 4: Simplify right side
    20,482.77x = 338,813,731.22
  5. Step 5: Solve for x
    x = 338,813,731.22/20,482.77
  6. Step 6: Final answer
    x = 16,541.40

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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.