Home / 18,429.19-25,433.33-13,945.16

Finding the Fourth Proportional to 18,429.19, 25,433.33 and 13,945.16

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Solution

The fourth proportional to 18,429.19, 25,433.33 and 13,945.16 is: 19,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.19 : 25,433.33 = 13,945.16 : x
  2. Step 2: Convert to fraction form
    18,429.19/25,433.33 = 13,945.16/x
  3. Step 3: Cross multiply
    18,429.19x = 25,433.33 × 13,945.16
  4. Step 4: Simplify right side
    18,429.19x = 354,671,856.18
  5. Step 5: Solve for x
    x = 354,671,856.18/18,429.19
  6. Step 6: Final answer
    x = 19,245.11

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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.