Home / 25,147.67-34,703.81-13,817.90

Finding the Fourth Proportional to 25,147.67, 34,703.81 and 13,817.90

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Solution

The fourth proportional to 25,147.67, 34,703.81 and 13,817.90 is: 19,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,147.67 : 34,703.81 = 13,817.90 : x
  2. Step 2: Convert to fraction form
    25,147.67/34,703.81 = 13,817.90/x
  3. Step 3: Cross multiply
    25,147.67x = 34,703.81 × 13,817.90
  4. Step 4: Simplify right side
    25,147.67x = 479,533,533.59
  5. Step 5: Solve for x
    x = 479,533,533.59/25,147.67
  6. Step 6: Final answer
    x = 19,068.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.