Home / 31,221.39-43,086.15-17,075.15

Finding the Fourth Proportional to 31,221.39, 43,086.15 and 17,075.15

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Solution

The fourth proportional to 31,221.39, 43,086.15 and 17,075.15 is: 23,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.39 : 43,086.15 = 17,075.15 : x
  2. Step 2: Convert to fraction form
    31,221.39/43,086.15 = 17,075.15/x
  3. Step 3: Cross multiply
    31,221.39x = 43,086.15 × 17,075.15
  4. Step 4: Simplify right side
    31,221.39x = 735,702,258.74
  5. Step 5: Solve for x
    x = 735,702,258.74/31,221.39
  6. Step 6: Final answer
    x = 23,564.05

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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.