Home / 42,378.11-63,550.90-14,290.57

Finding the Fourth Proportional to 42,378.11, 63,550.90 and 14,290.57

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Solution

The fourth proportional to 42,378.11, 63,550.90 and 14,290.57 is: 21,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,378.11 : 63,550.90 = 14,290.57 : x
  2. Step 2: Convert to fraction form
    42,378.11/63,550.90 = 14,290.57/x
  3. Step 3: Cross multiply
    42,378.11x = 63,550.90 × 14,290.57
  4. Step 4: Simplify right side
    42,378.11x = 908,178,585.01
  5. Step 5: Solve for x
    x = 908,178,585.01/42,378.11
  6. Step 6: Final answer
    x = 21,430.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.