Home / 31,648.04-43,685.28-18,224.64

Finding the Fourth Proportional to 31,648.04, 43,685.28 and 18,224.64

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Solution

The fourth proportional to 31,648.04, 43,685.28 and 18,224.64 is: 25,156.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,648.04 : 43,685.28 = 18,224.64 : x
  2. Step 2: Convert to fraction form
    31,648.04/43,685.28 = 18,224.64/x
  3. Step 3: Cross multiply
    31,648.04x = 43,685.28 × 18,224.64
  4. Step 4: Simplify right side
    31,648.04x = 796,148,501.30
  5. Step 5: Solve for x
    x = 796,148,501.30/31,648.04
  6. Step 6: Final answer
    x = 25,156.33

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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.