Home / 31,980.41-47,909.10-17,897.80

Finding the Fourth Proportional to 31,980.41, 47,909.10 and 17,897.80

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Solution

The fourth proportional to 31,980.41, 47,909.10 and 17,897.80 is: 26,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,980.41 : 47,909.10 = 17,897.80 : x
  2. Step 2: Convert to fraction form
    31,980.41/47,909.10 = 17,897.80/x
  3. Step 3: Cross multiply
    31,980.41x = 47,909.10 × 17,897.80
  4. Step 4: Simplify right side
    31,980.41x = 857,467,489.98
  5. Step 5: Solve for x
    x = 857,467,489.98/31,980.41
  6. Step 6: Final answer
    x = 26,812.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.