Home / 31,921.41-47,866.09-18,598.80

Finding the Fourth Proportional to 31,921.41, 47,866.09 and 18,598.80

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Solution

The fourth proportional to 31,921.41, 47,866.09 and 18,598.80 is: 27,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.41 : 47,866.09 = 18,598.80 : x
  2. Step 2: Convert to fraction form
    31,921.41/47,866.09 = 18,598.80/x
  3. Step 3: Cross multiply
    31,921.41x = 47,866.09 × 18,598.80
  4. Step 4: Simplify right side
    31,921.41x = 890,251,834.69
  5. Step 5: Solve for x
    x = 890,251,834.69/31,921.41
  6. Step 6: Final answer
    x = 27,888.86

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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.