Home / 30,006.45-45,004.95-18,879.08

Finding the Fourth Proportional to 30,006.45, 45,004.95 and 18,879.08

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Solution

The fourth proportional to 30,006.45, 45,004.95 and 18,879.08 is: 28,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,006.45 : 45,004.95 = 18,879.08 : x
  2. Step 2: Convert to fraction form
    30,006.45/45,004.95 = 18,879.08/x
  3. Step 3: Cross multiply
    30,006.45x = 45,004.95 × 18,879.08
  4. Step 4: Simplify right side
    30,006.45x = 849,651,826.42
  5. Step 5: Solve for x
    x = 849,651,826.42/30,006.45
  6. Step 6: Final answer
    x = 28,315.64

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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.