Home / 25,827.87-35,654.28-19,857.45

Finding the Fourth Proportional to 25,827.87, 35,654.28 and 19,857.45

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Solution

The fourth proportional to 25,827.87, 35,654.28 and 19,857.45 is: 27,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,827.87 : 35,654.28 = 19,857.45 : x
  2. Step 2: Convert to fraction form
    25,827.87/35,654.28 = 19,857.45/x
  3. Step 3: Cross multiply
    25,827.87x = 35,654.28 × 19,857.45
  4. Step 4: Simplify right side
    25,827.87x = 708,003,082.39
  5. Step 5: Solve for x
    x = 708,003,082.39/25,827.87
  6. Step 6: Final answer
    x = 27,412.37

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Double scale
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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.