Home / 43,146.68-64,718.19-13,563.86

Finding the Fourth Proportional to 43,146.68, 64,718.19 and 13,563.86

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Solution

The fourth proportional to 43,146.68, 64,718.19 and 13,563.86 is: 20,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,146.68 : 64,718.19 = 13,563.86 : x
  2. Step 2: Convert to fraction form
    43,146.68/64,718.19 = 13,563.86/x
  3. Step 3: Cross multiply
    43,146.68x = 64,718.19 × 13,563.86
  4. Step 4: Simplify right side
    43,146.68x = 877,828,145.02
  5. Step 5: Solve for x
    x = 877,828,145.02/43,146.68
  6. Step 6: Final answer
    x = 20,345.21

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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.