Home / 48,018.12-72,027.18-12,960.51

Finding the Fourth Proportional to 48,018.12, 72,027.18 and 12,960.51

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Solution

The fourth proportional to 48,018.12, 72,027.18 and 12,960.51 is: 19,440.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,018.12 : 72,027.18 = 12,960.51 : x
  2. Step 2: Convert to fraction form
    48,018.12/72,027.18 = 12,960.51/x
  3. Step 3: Cross multiply
    48,018.12x = 72,027.18 × 12,960.51
  4. Step 4: Simplify right side
    48,018.12x = 933,508,986.66
  5. Step 5: Solve for x
    x = 933,508,986.66/48,018.12
  6. Step 6: Final answer
    x = 19,440.77

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Similar ratio
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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.