Home / 48,018.45-72,027.70-18,420.14

Finding the Fourth Proportional to 48,018.45, 72,027.70 and 18,420.14

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Solution

The fourth proportional to 48,018.45, 72,027.70 and 18,420.14 is: 27,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,018.45 : 72,027.70 = 18,420.14 : x
  2. Step 2: Convert to fraction form
    48,018.45/72,027.70 = 18,420.14/x
  3. Step 3: Cross multiply
    48,018.45x = 72,027.70 × 18,420.14
  4. Step 4: Simplify right side
    48,018.45x = 1,326,760,451.90
  5. Step 5: Solve for x
    x = 1,326,760,451.90/48,018.45
  6. Step 6: Final answer
    x = 27,630.22

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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.