Home / 31,459.23-43,412.67-17,312.04

Finding the Fourth Proportional to 31,459.23, 43,412.67 and 17,312.04

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Solution

The fourth proportional to 31,459.23, 43,412.67 and 17,312.04 is: 23,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.23 : 43,412.67 = 17,312.04 : x
  2. Step 2: Convert to fraction form
    31,459.23/43,412.67 = 17,312.04/x
  3. Step 3: Cross multiply
    31,459.23x = 43,412.67 × 17,312.04
  4. Step 4: Simplify right side
    31,459.23x = 751,561,879.55
  5. Step 5: Solve for x
    x = 751,561,879.55/31,459.23
  6. Step 6: Final answer
    x = 23,890.03

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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.