Home / 30,033.28-41,445.94-16,421.40

Finding the Fourth Proportional to 30,033.28, 41,445.94 and 16,421.40

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Solution

The fourth proportional to 30,033.28, 41,445.94 and 16,421.40 is: 22,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,033.28 : 41,445.94 = 16,421.40 : x
  2. Step 2: Convert to fraction form
    30,033.28/41,445.94 = 16,421.40/x
  3. Step 3: Cross multiply
    30,033.28x = 41,445.94 × 16,421.40
  4. Step 4: Simplify right side
    30,033.28x = 680,600,359.12
  5. Step 5: Solve for x
    x = 680,600,359.12/30,033.28
  6. Step 6: Final answer
    x = 22,661.54

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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.