Home / 28,016.13-38,645.26-16,678.16

Finding the Fourth Proportional to 28,016.13, 38,645.26 and 16,678.16

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Solution

The fourth proportional to 28,016.13, 38,645.26 and 16,678.16 is: 23,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.13 : 38,645.26 = 16,678.16 : x
  2. Step 2: Convert to fraction form
    28,016.13/38,645.26 = 16,678.16/x
  3. Step 3: Cross multiply
    28,016.13x = 38,645.26 × 16,678.16
  4. Step 4: Simplify right side
    28,016.13x = 644,531,829.52
  5. Step 5: Solve for x
    x = 644,531,829.52/28,016.13
  6. Step 6: Final answer
    x = 23,005.74

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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.