Home / 28,016.08-38,666.77-16,686.20

Finding the Fourth Proportional to 28,016.08, 38,666.77 and 16,686.20

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Solution

The fourth proportional to 28,016.08, 38,666.77 and 16,686.20 is: 23,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.08 : 38,666.77 = 16,686.20 : x
  2. Step 2: Convert to fraction form
    28,016.08/38,666.77 = 16,686.20/x
  3. Step 3: Cross multiply
    28,016.08x = 38,666.77 × 16,686.20
  4. Step 4: Simplify right side
    28,016.08x = 645,201,512.53
  5. Step 5: Solve for x
    x = 645,201,512.53/28,016.08
  6. Step 6: Final answer
    x = 23,029.69

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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.