Home / 18,403.56-25,390.44-14,155.92

Finding the Fourth Proportional to 18,403.56, 25,390.44 and 14,155.92

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Solution

The fourth proportional to 18,403.56, 25,390.44 and 14,155.92 is: 19,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.56 : 25,390.44 = 14,155.92 : x
  2. Step 2: Convert to fraction form
    18,403.56/25,390.44 = 14,155.92/x
  3. Step 3: Cross multiply
    18,403.56x = 25,390.44 × 14,155.92
  4. Step 4: Simplify right side
    18,403.56x = 359,425,037.40
  5. Step 5: Solve for x
    x = 359,425,037.40/18,403.56
  6. Step 6: Final answer
    x = 19,530.19

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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.