Home / 25,271.39-37,930.43-12,800.18

Finding the Fourth Proportional to 25,271.39, 37,930.43 and 12,800.18

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Solution

The fourth proportional to 25,271.39, 37,930.43 and 12,800.18 is: 19,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,271.39 : 37,930.43 = 12,800.18 : x
  2. Step 2: Convert to fraction form
    25,271.39/37,930.43 = 12,800.18/x
  3. Step 3: Cross multiply
    25,271.39x = 37,930.43 × 12,800.18
  4. Step 4: Simplify right side
    25,271.39x = 485,516,331.48
  5. Step 5: Solve for x
    x = 485,516,331.48/25,271.39
  6. Step 6: Final answer
    x = 19,212.09

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1.5x scale

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.