Home / 30,330.40-41,855.32-16,901.60

Finding the Fourth Proportional to 30,330.40, 41,855.32 and 16,901.60

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Solution

The fourth proportional to 30,330.40, 41,855.32 and 16,901.60 is: 23,323.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.40 : 41,855.32 = 16,901.60 : x
  2. Step 2: Convert to fraction form
    30,330.40/41,855.32 = 16,901.60/x
  3. Step 3: Cross multiply
    30,330.40x = 41,855.32 × 16,901.60
  4. Step 4: Simplify right side
    30,330.40x = 707,421,876.51
  5. Step 5: Solve for x
    x = 707,421,876.51/30,330.40
  6. Step 6: Final answer
    x = 23,323.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.