Home / 28,037.98-38,691.93-15,291.27

Finding the Fourth Proportional to 28,037.98, 38,691.93 and 15,291.27

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Solution

The fourth proportional to 28,037.98, 38,691.93 and 15,291.27 is: 21,101.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.98 : 38,691.93 = 15,291.27 : x
  2. Step 2: Convert to fraction form
    28,037.98/38,691.93 = 15,291.27/x
  3. Step 3: Cross multiply
    28,037.98x = 38,691.93 × 15,291.27
  4. Step 4: Simplify right side
    28,037.98x = 591,648,748.45
  5. Step 5: Solve for x
    x = 591,648,748.45/28,037.98
  6. Step 6: Final answer
    x = 21,101.69

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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.