Home / 31,416.50-43,354.86-17,987.96

Finding the Fourth Proportional to 31,416.50, 43,354.86 and 17,987.96

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Solution

The fourth proportional to 31,416.50, 43,354.86 and 17,987.96 is: 24,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,416.50 : 43,354.86 = 17,987.96 : x
  2. Step 2: Convert to fraction form
    31,416.50/43,354.86 = 17,987.96/x
  3. Step 3: Cross multiply
    31,416.50x = 43,354.86 × 17,987.96
  4. Step 4: Simplify right side
    31,416.50x = 779,865,487.49
  5. Step 5: Solve for x
    x = 779,865,487.49/31,416.50
  6. Step 6: Final answer
    x = 24,823.44

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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.