Home / 30,572.72-45,872.08-16,705.52

Finding the Fourth Proportional to 30,572.72, 45,872.08 and 16,705.52

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Solution

The fourth proportional to 30,572.72, 45,872.08 and 16,705.52 is: 25,065.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.72 : 45,872.08 = 16,705.52 : x
  2. Step 2: Convert to fraction form
    30,572.72/45,872.08 = 16,705.52/x
  3. Step 3: Cross multiply
    30,572.72x = 45,872.08 × 16,705.52
  4. Step 4: Simplify right side
    30,572.72x = 766,316,949.88
  5. Step 5: Solve for x
    x = 766,316,949.88/30,572.72
  6. Step 6: Final answer
    x = 25,065.38

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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.