Home / 30,160.36-45,240.54-9,379.72

Finding the Fourth Proportional to 30,160.36, 45,240.54 and 9,379.72

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Solution

The fourth proportional to 30,160.36, 45,240.54 and 9,379.72 is: 14,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,160.36 : 45,240.54 = 9,379.72 : x
  2. Step 2: Convert to fraction form
    30,160.36/45,240.54 = 9,379.72/x
  3. Step 3: Cross multiply
    30,160.36x = 45,240.54 × 9,379.72
  4. Step 4: Simplify right side
    30,160.36x = 424,343,597.85
  5. Step 5: Solve for x
    x = 424,343,597.85/30,160.36
  6. Step 6: Final answer
    x = 14,069.58

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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.