Home / 38,780.32-58,176.06-12,476.32

Finding the Fourth Proportional to 38,780.32, 58,176.06 and 12,476.32

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Solution

The fourth proportional to 38,780.32, 58,176.06 and 12,476.32 is: 18,716.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.32 : 58,176.06 = 12,476.32 : x
  2. Step 2: Convert to fraction form
    38,780.32/58,176.06 = 12,476.32/x
  3. Step 3: Cross multiply
    38,780.32x = 58,176.06 × 12,476.32
  4. Step 4: Simplify right side
    38,780.32x = 725,823,140.90
  5. Step 5: Solve for x
    x = 725,823,140.90/38,780.32
  6. Step 6: Final answer
    x = 18,716.28

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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.