Home / 31,744.64-43,812.45-20,264.51

Finding the Fourth Proportional to 31,744.64, 43,812.45 and 20,264.51

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Solution

The fourth proportional to 31,744.64, 43,812.45 and 20,264.51 is: 27,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,744.64 : 43,812.45 = 20,264.51 : x
  2. Step 2: Convert to fraction form
    31,744.64/43,812.45 = 20,264.51/x
  3. Step 3: Cross multiply
    31,744.64x = 43,812.45 × 20,264.51
  4. Step 4: Simplify right side
    31,744.64x = 887,837,612.09
  5. Step 5: Solve for x
    x = 887,837,612.09/31,744.64
  6. Step 6: Final answer
    x = 27,968.12

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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.