Home / 18,650.10-25,742.57-14,899.40

Finding the Fourth Proportional to 18,650.10, 25,742.57 and 14,899.40

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Solution

The fourth proportional to 18,650.10, 25,742.57 and 14,899.40 is: 20,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.10 : 25,742.57 = 14,899.40 : x
  2. Step 2: Convert to fraction form
    18,650.10/25,742.57 = 14,899.40/x
  3. Step 3: Cross multiply
    18,650.10x = 25,742.57 × 14,899.40
  4. Step 4: Simplify right side
    18,650.10x = 383,548,847.46
  5. Step 5: Solve for x
    x = 383,548,847.46/18,650.10
  6. Step 6: Final answer
    x = 20,565.51

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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.