Home / 31,405.48-43,340.34-17,259.64

Finding the Fourth Proportional to 31,405.48, 43,340.34 and 17,259.64

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Solution

The fourth proportional to 31,405.48, 43,340.34 and 17,259.64 is: 23,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.48 : 43,340.34 = 17,259.64 : x
  2. Step 2: Convert to fraction form
    31,405.48/43,340.34 = 17,259.64/x
  3. Step 3: Cross multiply
    31,405.48x = 43,340.34 × 17,259.64
  4. Step 4: Simplify right side
    31,405.48x = 748,038,665.88
  5. Step 5: Solve for x
    x = 748,038,665.88/31,405.48
  6. Step 6: Final answer
    x = 23,818.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.