Home / 30,498.42-45,749.00-13,400.18

Finding the Fourth Proportional to 30,498.42, 45,749.00 and 13,400.18

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Solution

The fourth proportional to 30,498.42, 45,749.00 and 13,400.18 is: 20,100.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,498.42 : 45,749.00 = 13,400.18 : x
  2. Step 2: Convert to fraction form
    30,498.42/45,749.00 = 13,400.18/x
  3. Step 3: Cross multiply
    30,498.42x = 45,749.00 × 13,400.18
  4. Step 4: Simplify right side
    30,498.42x = 613,044,915.69
  5. Step 5: Solve for x
    x = 613,044,915.69/30,498.42
  6. Step 6: Final answer
    x = 20,100.87

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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.