Home / 25,290.11-37,916.43-12,129.95

Finding the Fourth Proportional to 25,290.11, 37,916.43 and 12,129.95

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Solution

The fourth proportional to 25,290.11, 37,916.43 and 12,129.95 is: 18,185.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,290.11 : 37,916.43 = 12,129.95 : x
  2. Step 2: Convert to fraction form
    25,290.11/37,916.43 = 12,129.95/x
  3. Step 3: Cross multiply
    25,290.11x = 37,916.43 × 12,129.95
  4. Step 4: Simplify right side
    25,290.11x = 459,924,210.50
  5. Step 5: Solve for x
    x = 459,924,210.50/25,290.11
  6. Step 6: Final answer
    x = 18,185.94

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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.