Home / 25,660.08-38,490.10-18,684.48

Finding the Fourth Proportional to 25,660.08, 38,490.10 and 18,684.48

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Solution

The fourth proportional to 25,660.08, 38,490.10 and 18,684.48 is: 28,026.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,660.08 : 38,490.10 = 18,684.48 : x
  2. Step 2: Convert to fraction form
    25,660.08/38,490.10 = 18,684.48/x
  3. Step 3: Cross multiply
    25,660.08x = 38,490.10 × 18,684.48
  4. Step 4: Simplify right side
    25,660.08x = 719,167,503.65
  5. Step 5: Solve for x
    x = 719,167,503.65/25,660.08
  6. Step 6: Final answer
    x = 28,026.71

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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.