Home / 20,765.05-28,644.85-14,052.93

Finding the Fourth Proportional to 20,765.05, 28,644.85 and 14,052.93

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Solution

The fourth proportional to 20,765.05, 28,644.85 and 14,052.93 is: 19,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,765.05 : 28,644.85 = 14,052.93 : x
  2. Step 2: Convert to fraction form
    20,765.05/28,644.85 = 14,052.93/x
  3. Step 3: Cross multiply
    20,765.05x = 28,644.85 × 14,052.93
  4. Step 4: Simplify right side
    20,765.05x = 402,544,071.91
  5. Step 5: Solve for x
    x = 402,544,071.91/20,765.05
  6. Step 6: Final answer
    x = 19,385.65

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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.