Home / 31,165.20-46,748.16-18,009.60

Finding the Fourth Proportional to 31,165.20, 46,748.16 and 18,009.60

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Solution

The fourth proportional to 31,165.20, 46,748.16 and 18,009.60 is: 27,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,165.20 : 46,748.16 = 18,009.60 : x
  2. Step 2: Convert to fraction form
    31,165.20/46,748.16 = 18,009.60/x
  3. Step 3: Cross multiply
    31,165.20x = 46,748.16 × 18,009.60
  4. Step 4: Simplify right side
    31,165.20x = 841,915,662.34
  5. Step 5: Solve for x
    x = 841,915,662.34/31,165.20
  6. Step 6: Final answer
    x = 27,014.61

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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.