Home / 31,780.35-43,859.48-17,637.75

Finding the Fourth Proportional to 31,780.35, 43,859.48 and 17,637.75

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Solution

The fourth proportional to 31,780.35, 43,859.48 and 17,637.75 is: 24,341.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.35 : 43,859.48 = 17,637.75 : x
  2. Step 2: Convert to fraction form
    31,780.35/43,859.48 = 17,637.75/x
  3. Step 3: Cross multiply
    31,780.35x = 43,859.48 × 17,637.75
  4. Step 4: Simplify right side
    31,780.35x = 773,582,455.18
  5. Step 5: Solve for x
    x = 773,582,455.18/31,780.35
  6. Step 6: Final answer
    x = 24,341.53

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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.