Home / 38,717.46-58,083.75-12,420.18

Finding the Fourth Proportional to 38,717.46, 58,083.75 and 12,420.18

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Solution

The fourth proportional to 38,717.46, 58,083.75 and 12,420.18 is: 18,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,717.46 : 58,083.75 = 12,420.18 : x
  2. Step 2: Convert to fraction form
    38,717.46/58,083.75 = 12,420.18/x
  3. Step 3: Cross multiply
    38,717.46x = 58,083.75 × 12,420.18
  4. Step 4: Simplify right side
    38,717.46x = 721,410,630.08
  5. Step 5: Solve for x
    x = 721,410,630.08/38,717.46
  6. Step 6: Final answer
    x = 18,632.70

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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.