Home / 25,553.92-38,327.64-18,989.68

Finding the Fourth Proportional to 25,553.92, 38,327.64 and 18,989.68

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Solution

The fourth proportional to 25,553.92, 38,327.64 and 18,989.68 is: 28,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,553.92 : 38,327.64 = 18,989.68 : x
  2. Step 2: Convert to fraction form
    25,553.92/38,327.64 = 18,989.68/x
  3. Step 3: Cross multiply
    25,553.92x = 38,327.64 × 18,989.68
  4. Step 4: Simplify right side
    25,553.92x = 727,829,618.76
  5. Step 5: Solve for x
    x = 727,829,618.76/25,553.92
  6. Step 6: Final answer
    x = 28,482.11

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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.