Home / 19,457.65-29,139.70-11,112.37

Finding the Fourth Proportional to 19,457.65, 29,139.70 and 11,112.37

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Solution

The fourth proportional to 19,457.65, 29,139.70 and 11,112.37 is: 16,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,457.65 : 29,139.70 = 11,112.37 : x
  2. Step 2: Convert to fraction form
    19,457.65/29,139.70 = 11,112.37/x
  3. Step 3: Cross multiply
    19,457.65x = 29,139.70 × 11,112.37
  4. Step 4: Simplify right side
    19,457.65x = 323,811,128.09
  5. Step 5: Solve for x
    x = 323,811,128.09/19,457.65
  6. Step 6: Final answer
    x = 16,641.84

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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.