Home / 38,719.89-58,088.21-12,424.46

Finding the Fourth Proportional to 38,719.89, 58,088.21 and 12,424.46

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Solution

The fourth proportional to 38,719.89, 58,088.21 and 12,424.46 is: 18,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,719.89 : 58,088.21 = 12,424.46 : x
  2. Step 2: Convert to fraction form
    38,719.89/58,088.21 = 12,424.46/x
  3. Step 3: Cross multiply
    38,719.89x = 58,088.21 × 12,424.46
  4. Step 4: Simplify right side
    38,719.89x = 721,714,289.05
  5. Step 5: Solve for x
    x = 721,714,289.05/38,719.89
  6. Step 6: Final answer
    x = 18,639.37

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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.