Home / 27,629.34-38,128.74-15,692.91

Finding the Fourth Proportional to 27,629.34, 38,128.74 and 15,692.91

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Solution

The fourth proportional to 27,629.34, 38,128.74 and 15,692.91 is: 21,656.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.34 : 38,128.74 = 15,692.91 : x
  2. Step 2: Convert to fraction form
    27,629.34/38,128.74 = 15,692.91/x
  3. Step 3: Cross multiply
    27,629.34x = 38,128.74 × 15,692.91
  4. Step 4: Simplify right side
    27,629.34x = 598,350,885.23
  5. Step 5: Solve for x
    x = 598,350,885.23/27,629.34
  6. Step 6: Final answer
    x = 21,656.36

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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.