Home / 31,780.44-47,673.90-10,999.08

Finding the Fourth Proportional to 31,780.44, 47,673.90 and 10,999.08

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Solution

The fourth proportional to 31,780.44, 47,673.90 and 10,999.08 is: 16,499.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.44 : 47,673.90 = 10,999.08 : x
  2. Step 2: Convert to fraction form
    31,780.44/47,673.90 = 10,999.08/x
  3. Step 3: Cross multiply
    31,780.44x = 47,673.90 × 10,999.08
  4. Step 4: Simplify right side
    31,780.44x = 524,369,040.01
  5. Step 5: Solve for x
    x = 524,369,040.01/31,780.44
  6. Step 6: Final answer
    x = 16,499.74

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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.