Home / 25,787.48-38,740.41-18,206.19

Finding the Fourth Proportional to 25,787.48, 38,740.41 and 18,206.19

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Solution

The fourth proportional to 25,787.48, 38,740.41 and 18,206.19 is: 27,351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,787.48 : 38,740.41 = 18,206.19 : x
  2. Step 2: Convert to fraction form
    25,787.48/38,740.41 = 18,206.19/x
  3. Step 3: Cross multiply
    25,787.48x = 38,740.41 × 18,206.19
  4. Step 4: Simplify right side
    25,787.48x = 705,315,265.14
  5. Step 5: Solve for x
    x = 705,315,265.14/25,787.48
  6. Step 6: Final answer
    x = 27,351.08

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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.