Home / 31,742.96-43,802.54-18,130.94

Finding the Fourth Proportional to 31,742.96, 43,802.54 and 18,130.94

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Solution

The fourth proportional to 31,742.96, 43,802.54 and 18,130.94 is: 25,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.96 : 43,802.54 = 18,130.94 : x
  2. Step 2: Convert to fraction form
    31,742.96/43,802.54 = 18,130.94/x
  3. Step 3: Cross multiply
    31,742.96x = 43,802.54 × 18,130.94
  4. Step 4: Simplify right side
    31,742.96x = 794,180,914.92
  5. Step 5: Solve for x
    x = 794,180,914.92/31,742.96
  6. Step 6: Final answer
    x = 25,019.12

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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.