Home / 31,221.64-43,086.50-17,075.40

Finding the Fourth Proportional to 31,221.64, 43,086.50 and 17,075.40

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Solution

The fourth proportional to 31,221.64, 43,086.50 and 17,075.40 is: 23,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.64 : 43,086.50 = 17,075.40 : x
  2. Step 2: Convert to fraction form
    31,221.64/43,086.50 = 17,075.40/x
  3. Step 3: Cross multiply
    31,221.64x = 43,086.50 × 17,075.40
  4. Step 4: Simplify right side
    31,221.64x = 735,719,222.10
  5. Step 5: Solve for x
    x = 735,719,222.10/31,221.64
  6. Step 6: Final answer
    x = 23,564.40

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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.