Home / 28,692.48-39,592.56-16,747.20

Finding the Fourth Proportional to 28,692.48, 39,592.56 and 16,747.20

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Solution

The fourth proportional to 28,692.48, 39,592.56 and 16,747.20 is: 23,109.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.48 : 39,592.56 = 16,747.20 : x
  2. Step 2: Convert to fraction form
    28,692.48/39,592.56 = 16,747.20/x
  3. Step 3: Cross multiply
    28,692.48x = 39,592.56 × 16,747.20
  4. Step 4: Simplify right side
    28,692.48x = 663,064,520.83
  5. Step 5: Solve for x
    x = 663,064,520.83/28,692.48
  6. Step 6: Final answer
    x = 23,109.35

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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.