Home / 28,686.30-43,007.85-12,032.70

Finding the Fourth Proportional to 28,686.30, 43,007.85 and 12,032.70

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Solution

The fourth proportional to 28,686.30, 43,007.85 and 12,032.70 is: 18,039.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.30 : 43,007.85 = 12,032.70 : x
  2. Step 2: Convert to fraction form
    28,686.30/43,007.85 = 12,032.70/x
  3. Step 3: Cross multiply
    28,686.30x = 43,007.85 × 12,032.70
  4. Step 4: Simplify right side
    28,686.30x = 517,500,556.70
  5. Step 5: Solve for x
    x = 517,500,556.70/28,686.30
  6. Step 6: Final answer
    x = 18,039.99

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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.