Home / 28,779.60-43,128.90-22,866.60

Finding the Fourth Proportional to 28,779.60, 43,128.90 and 22,866.60

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Solution

The fourth proportional to 28,779.60, 43,128.90 and 22,866.60 is: 34,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.60 : 43,128.90 = 22,866.60 : x
  2. Step 2: Convert to fraction form
    28,779.60/43,128.90 = 22,866.60/x
  3. Step 3: Cross multiply
    28,779.60x = 43,128.90 × 22,866.60
  4. Step 4: Simplify right side
    28,779.60x = 986,211,304.74
  5. Step 5: Solve for x
    x = 986,211,304.74/28,779.60
  6. Step 6: Final answer
    x = 34,267.72

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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.