Home / 31,779.59-47,681.93-12,063.38

Finding the Fourth Proportional to 31,779.59, 47,681.93 and 12,063.38

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Solution

The fourth proportional to 31,779.59, 47,681.93 and 12,063.38 is: 18,099.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.59 : 47,681.93 = 12,063.38 : x
  2. Step 2: Convert to fraction form
    31,779.59/47,681.93 = 12,063.38/x
  3. Step 3: Cross multiply
    31,779.59x = 47,681.93 × 12,063.38
  4. Step 4: Simplify right side
    31,779.59x = 575,205,240.72
  5. Step 5: Solve for x
    x = 575,205,240.72/31,779.59
  6. Step 6: Final answer
    x = 18,099.83

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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.