Home / 28,005.62-38,678.85-19,037.57

Finding the Fourth Proportional to 28,005.62, 38,678.85 and 19,037.57

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Solution

The fourth proportional to 28,005.62, 38,678.85 and 19,037.57 is: 26,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.62 : 38,678.85 = 19,037.57 : x
  2. Step 2: Convert to fraction form
    28,005.62/38,678.85 = 19,037.57/x
  3. Step 3: Cross multiply
    28,005.62x = 38,678.85 × 19,037.57
  4. Step 4: Simplify right side
    28,005.62x = 736,351,121.00
  5. Step 5: Solve for x
    x = 736,351,121.00/28,005.62
  6. Step 6: Final answer
    x = 26,292.98

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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.