Home / 28,624.66-39,498.70-15,874.75

Finding the Fourth Proportional to 28,624.66, 39,498.70 and 15,874.75

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Solution

The fourth proportional to 28,624.66, 39,498.70 and 15,874.75 is: 21,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,624.66 : 39,498.70 = 15,874.75 : x
  2. Step 2: Convert to fraction form
    28,624.66/39,498.70 = 15,874.75/x
  3. Step 3: Cross multiply
    28,624.66x = 39,498.70 × 15,874.75
  4. Step 4: Simplify right side
    28,624.66x = 627,031,987.83
  5. Step 5: Solve for x
    x = 627,031,987.83/28,624.66
  6. Step 6: Final answer
    x = 21,905.31

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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.