Home / 25,900.64-38,871.28-18,058.40

Finding the Fourth Proportional to 25,900.64, 38,871.28 and 18,058.40

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Solution

The fourth proportional to 25,900.64, 38,871.28 and 18,058.40 is: 27,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,900.64 : 38,871.28 = 18,058.40 : x
  2. Step 2: Convert to fraction form
    25,900.64/38,871.28 = 18,058.40/x
  3. Step 3: Cross multiply
    25,900.64x = 38,871.28 × 18,058.40
  4. Step 4: Simplify right side
    25,900.64x = 701,953,122.75
  5. Step 5: Solve for x
    x = 701,953,122.75/25,900.64
  6. Step 6: Final answer
    x = 27,101.77

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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.