Home / 30,403.16-45,604.90-13,743.69

Finding the Fourth Proportional to 30,403.16, 45,604.90 and 13,743.69

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Solution

The fourth proportional to 30,403.16, 45,604.90 and 13,743.69 is: 20,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,403.16 : 45,604.90 = 13,743.69 : x
  2. Step 2: Convert to fraction form
    30,403.16/45,604.90 = 13,743.69/x
  3. Step 3: Cross multiply
    30,403.16x = 45,604.90 × 13,743.69
  4. Step 4: Simplify right side
    30,403.16x = 626,779,608.08
  5. Step 5: Solve for x
    x = 626,779,608.08/30,403.16
  6. Step 6: Final answer
    x = 20,615.61

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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.