Home / 31,740.86-43,802.98-17,399.75

Finding the Fourth Proportional to 31,740.86, 43,802.98 and 17,399.75

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Solution

The fourth proportional to 31,740.86, 43,802.98 and 17,399.75 is: 24,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,740.86 : 43,802.98 = 17,399.75 : x
  2. Step 2: Convert to fraction form
    31,740.86/43,802.98 = 17,399.75/x
  3. Step 3: Cross multiply
    31,740.86x = 43,802.98 × 17,399.75
  4. Step 4: Simplify right side
    31,740.86x = 762,160,638.74
  5. Step 5: Solve for x
    x = 762,160,638.74/31,740.86
  6. Step 6: Final answer
    x = 24,011.97

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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.