Home / 19,038.93-28,564.23-8,517.80

Finding the Fourth Proportional to 19,038.93, 28,564.23 and 8,517.80

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Solution

The fourth proportional to 19,038.93, 28,564.23 and 8,517.80 is: 12,779.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,038.93 : 28,564.23 = 8,517.80 : x
  2. Step 2: Convert to fraction form
    19,038.93/28,564.23 = 8,517.80/x
  3. Step 3: Cross multiply
    19,038.93x = 28,564.23 × 8,517.80
  4. Step 4: Simplify right side
    19,038.93x = 243,304,355.71
  5. Step 5: Solve for x
    x = 243,304,355.71/19,038.93
  6. Step 6: Final answer
    x = 12,779.31

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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.