Home / 28,559.40-42,849.35-12,763.11

Finding the Fourth Proportional to 28,559.40, 42,849.35 and 12,763.11

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Solution

The fourth proportional to 28,559.40, 42,849.35 and 12,763.11 is: 19,149.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.40 : 42,849.35 = 12,763.11 : x
  2. Step 2: Convert to fraction form
    28,559.40/42,849.35 = 12,763.11/x
  3. Step 3: Cross multiply
    28,559.40x = 42,849.35 × 12,763.11
  4. Step 4: Simplify right side
    28,559.40x = 546,890,903.66
  5. Step 5: Solve for x
    x = 546,890,903.66/28,559.40
  6. Step 6: Final answer
    x = 19,149.24

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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.