Home / 22,070.43-30,457.79-11,999.55

Finding the Fourth Proportional to 22,070.43, 30,457.79 and 11,999.55

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Solution

The fourth proportional to 22,070.43, 30,457.79 and 11,999.55 is: 16,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070.43 : 30,457.79 = 11,999.55 : x
  2. Step 2: Convert to fraction form
    22,070.43/30,457.79 = 11,999.55/x
  3. Step 3: Cross multiply
    22,070.43x = 30,457.79 × 11,999.55
  4. Step 4: Simplify right side
    22,070.43x = 365,479,714.00
  5. Step 5: Solve for x
    x = 365,479,714.00/22,070.43
  6. Step 6: Final answer
    x = 16,559.70

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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.