Home / 28,013.72-38,641.80-16,675.64

Finding the Fourth Proportional to 28,013.72, 38,641.80 and 16,675.64

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Solution

The fourth proportional to 28,013.72, 38,641.80 and 16,675.64 is: 23,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.72 : 38,641.80 = 16,675.64 : x
  2. Step 2: Convert to fraction form
    28,013.72/38,641.80 = 16,675.64/x
  3. Step 3: Cross multiply
    28,013.72x = 38,641.80 × 16,675.64
  4. Step 4: Simplify right side
    28,013.72x = 644,376,745.75
  5. Step 5: Solve for x
    x = 644,376,745.75/28,013.72
  6. Step 6: Final answer
    x = 23,002.18

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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.