Home / 28,774.89-39,710.45-16,675.78

Finding the Fourth Proportional to 28,774.89, 39,710.45 and 16,675.78

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Solution

The fourth proportional to 28,774.89, 39,710.45 and 16,675.78 is: 23,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.89 : 39,710.45 = 16,675.78 : x
  2. Step 2: Convert to fraction form
    28,774.89/39,710.45 = 16,675.78/x
  3. Step 3: Cross multiply
    28,774.89x = 39,710.45 × 16,675.78
  4. Step 4: Simplify right side
    28,774.89x = 662,202,644.52
  5. Step 5: Solve for x
    x = 662,202,644.52/28,774.89
  6. Step 6: Final answer
    x = 23,013.22

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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.