Home / 25,686.32-38,549.56-13,205.84

Finding the Fourth Proportional to 25,686.32, 38,549.56 and 13,205.84

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Solution

The fourth proportional to 25,686.32, 38,549.56 and 13,205.84 is: 19,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,686.32 : 38,549.56 = 13,205.84 : x
  2. Step 2: Convert to fraction form
    25,686.32/38,549.56 = 13,205.84/x
  3. Step 3: Cross multiply
    25,686.32x = 38,549.56 × 13,205.84
  4. Step 4: Simplify right side
    25,686.32x = 509,079,321.43
  5. Step 5: Solve for x
    x = 509,079,321.43/25,686.32
  6. Step 6: Final answer
    x = 19,819.08

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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.