Home / 25,725.70-38,605.02-13,887.71

Finding the Fourth Proportional to 25,725.70, 38,605.02 and 13,887.71

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Solution

The fourth proportional to 25,725.70, 38,605.02 and 13,887.71 is: 20,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,725.70 : 38,605.02 = 13,887.71 : x
  2. Step 2: Convert to fraction form
    25,725.70/38,605.02 = 13,887.71/x
  3. Step 3: Cross multiply
    25,725.70x = 38,605.02 × 13,887.71
  4. Step 4: Simplify right side
    25,725.70x = 536,135,252.87
  5. Step 5: Solve for x
    x = 536,135,252.87/25,725.70
  6. Step 6: Final answer
    x = 20,840.46

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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.