Home / 25,127.10-37,679.72-12,639.33

Finding the Fourth Proportional to 25,127.10, 37,679.72 and 12,639.33

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Solution

The fourth proportional to 25,127.10, 37,679.72 and 12,639.33 is: 18,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,127.10 : 37,679.72 = 12,639.33 : x
  2. Step 2: Convert to fraction form
    25,127.10/37,679.72 = 12,639.33/x
  3. Step 3: Cross multiply
    25,127.10x = 37,679.72 × 12,639.33
  4. Step 4: Simplify right side
    25,127.10x = 476,246,352.19
  5. Step 5: Solve for x
    x = 476,246,352.19/25,127.10
  6. Step 6: Final answer
    x = 18,953.49

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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.