Home / 25,677.99-38,491.46-17,870.40

Finding the Fourth Proportional to 25,677.99, 38,491.46 and 17,870.40

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Solution

The fourth proportional to 25,677.99, 38,491.46 and 17,870.40 is: 26,787.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,677.99 : 38,491.46 = 17,870.40 : x
  2. Step 2: Convert to fraction form
    25,677.99/38,491.46 = 17,870.40/x
  3. Step 3: Cross multiply
    25,677.99x = 38,491.46 × 17,870.40
  4. Step 4: Simplify right side
    25,677.99x = 687,857,786.78
  5. Step 5: Solve for x
    x = 687,857,786.78/25,677.99
  6. Step 6: Final answer
    x = 26,787.84

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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.