Home / 28,005.88-38,648.91-16,071.34

Finding the Fourth Proportional to 28,005.88, 38,648.91 and 16,071.34

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Solution

The fourth proportional to 28,005.88, 38,648.91 and 16,071.34 is: 22,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.88 : 38,648.91 = 16,071.34 : x
  2. Step 2: Convert to fraction form
    28,005.88/38,648.91 = 16,071.34/x
  3. Step 3: Cross multiply
    28,005.88x = 38,648.91 × 16,071.34
  4. Step 4: Simplify right side
    28,005.88x = 621,139,773.24
  5. Step 5: Solve for x
    x = 621,139,773.24/28,005.88
  6. Step 6: Final answer
    x = 22,178.91

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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.