Home / 27,630.48-38,128.64-15,692.24

Finding the Fourth Proportional to 27,630.48, 38,128.64 and 15,692.24

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Solution

The fourth proportional to 27,630.48, 38,128.64 and 15,692.24 is: 21,654.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.48 : 38,128.64 = 15,692.24 : x
  2. Step 2: Convert to fraction form
    27,630.48/38,128.64 = 15,692.24/x
  3. Step 3: Cross multiply
    27,630.48x = 38,128.64 × 15,692.24
  4. Step 4: Simplify right side
    27,630.48x = 598,323,769.75
  5. Step 5: Solve for x
    x = 598,323,769.75/27,630.48
  6. Step 6: Final answer
    x = 21,654.48

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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.