Home / 28,500.07-42,758.76-20,196.15

Finding the Fourth Proportional to 28,500.07, 42,758.76 and 20,196.15

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Solution

The fourth proportional to 28,500.07, 42,758.76 and 20,196.15 is: 30,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.07 : 42,758.76 = 20,196.15 : x
  2. Step 2: Convert to fraction form
    28,500.07/42,758.76 = 20,196.15/x
  3. Step 3: Cross multiply
    28,500.07x = 42,758.76 × 20,196.15
  4. Step 4: Simplify right side
    28,500.07x = 863,562,330.77
  5. Step 5: Solve for x
    x = 863,562,330.77/28,500.07
  6. Step 6: Final answer
    x = 30,300.36

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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.