Home / 28,780.36-43,170.48-9,060.64

Finding the Fourth Proportional to 28,780.36, 43,170.48 and 9,060.64

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Solution

The fourth proportional to 28,780.36, 43,170.48 and 9,060.64 is: 13,590.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.36 : 43,170.48 = 9,060.64 : x
  2. Step 2: Convert to fraction form
    28,780.36/43,170.48 = 9,060.64/x
  3. Step 3: Cross multiply
    28,780.36x = 43,170.48 × 9,060.64
  4. Step 4: Simplify right side
    28,780.36x = 391,152,177.91
  5. Step 5: Solve for x
    x = 391,152,177.91/28,780.36
  6. Step 6: Final answer
    x = 13,590.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.