Home / 31,187.35-43,043.77-17,756.74

Finding the Fourth Proportional to 31,187.35, 43,043.77 and 17,756.74

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Solution

The fourth proportional to 31,187.35, 43,043.77 and 17,756.74 is: 24,507.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.35 : 43,043.77 = 17,756.74 : x
  2. Step 2: Convert to fraction form
    31,187.35/43,043.77 = 17,756.74/x
  3. Step 3: Cross multiply
    31,187.35x = 43,043.77 × 17,756.74
  4. Step 4: Simplify right side
    31,187.35x = 764,317,032.51
  5. Step 5: Solve for x
    x = 764,317,032.51/31,187.35
  6. Step 6: Final answer
    x = 24,507.28

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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.