Home / 25,401.30-38,145.15-18,834.90

Finding the Fourth Proportional to 25,401.30, 38,145.15 and 18,834.90

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Solution

The fourth proportional to 25,401.30, 38,145.15 and 18,834.90 is: 28,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,401.30 : 38,145.15 = 18,834.90 : x
  2. Step 2: Convert to fraction form
    25,401.30/38,145.15 = 18,834.90/x
  3. Step 3: Cross multiply
    25,401.30x = 38,145.15 × 18,834.90
  4. Step 4: Simplify right side
    25,401.30x = 718,460,085.74
  5. Step 5: Solve for x
    x = 718,460,085.74/25,401.30
  6. Step 6: Final answer
    x = 28,284.38

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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.