Home / 30,129.52-45,198.51-12,595.36

Finding the Fourth Proportional to 30,129.52, 45,198.51 and 12,595.36

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Solution

The fourth proportional to 30,129.52, 45,198.51 and 12,595.36 is: 18,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,129.52 : 45,198.51 = 12,595.36 : x
  2. Step 2: Convert to fraction form
    30,129.52/45,198.51 = 12,595.36/x
  3. Step 3: Cross multiply
    30,129.52x = 45,198.51 × 12,595.36
  4. Step 4: Simplify right side
    30,129.52x = 569,291,504.91
  5. Step 5: Solve for x
    x = 569,291,504.91/30,129.52
  6. Step 6: Final answer
    x = 18,894.81

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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.