Home / 30,343.50-45,483.98-11,618.42

Finding the Fourth Proportional to 30,343.50, 45,483.98 and 11,618.42

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Solution

The fourth proportional to 30,343.50, 45,483.98 and 11,618.42 is: 17,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,343.50 : 45,483.98 = 11,618.42 : x
  2. Step 2: Convert to fraction form
    30,343.50/45,483.98 = 11,618.42/x
  3. Step 3: Cross multiply
    30,343.50x = 45,483.98 × 11,618.42
  4. Step 4: Simplify right side
    30,343.50x = 528,451,982.91
  5. Step 5: Solve for x
    x = 528,451,982.91/30,343.50
  6. Step 6: Final answer
    x = 17,415.66

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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.