Home / 31,435.56-43,381.08-17,289.36

Finding the Fourth Proportional to 31,435.56, 43,381.08 and 17,289.36

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Solution

The fourth proportional to 31,435.56, 43,381.08 and 17,289.36 is: 23,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.56 : 43,381.08 = 17,289.36 : x
  2. Step 2: Convert to fraction form
    31,435.56/43,381.08 = 17,289.36/x
  3. Step 3: Cross multiply
    31,435.56x = 43,381.08 × 17,289.36
  4. Step 4: Simplify right side
    31,435.56x = 750,031,109.31
  5. Step 5: Solve for x
    x = 750,031,109.31/31,435.56
  6. Step 6: Final answer
    x = 23,859.32

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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.