Home / 31,435.32-43,381.65-17,289.08

Finding the Fourth Proportional to 31,435.32, 43,381.65 and 17,289.08

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Solution

The fourth proportional to 31,435.32, 43,381.65 and 17,289.08 is: 23,859.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.32 : 43,381.65 = 17,289.08 : x
  2. Step 2: Convert to fraction form
    31,435.32/43,381.65 = 17,289.08/x
  3. Step 3: Cross multiply
    31,435.32x = 43,381.65 × 17,289.08
  4. Step 4: Simplify right side
    31,435.32x = 750,028,600.47
  5. Step 5: Solve for x
    x = 750,028,600.47/31,435.32
  6. Step 6: Final answer
    x = 23,859.42

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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.