Home / 18,438.92-25,445.58-10,055.42

Finding the Fourth Proportional to 18,438.92, 25,445.58 and 10,055.42

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Solution

The fourth proportional to 18,438.92, 25,445.58 and 10,055.42 is: 13,876.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.92 : 25,445.58 = 10,055.42 : x
  2. Step 2: Convert to fraction form
    18,438.92/25,445.58 = 10,055.42/x
  3. Step 3: Cross multiply
    18,438.92x = 25,445.58 × 10,055.42
  4. Step 4: Simplify right side
    18,438.92x = 255,865,994.04
  5. Step 5: Solve for x
    x = 255,865,994.04/18,438.92
  6. Step 6: Final answer
    x = 13,876.41

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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.