Home / 31,784.60-43,864.84-18,356.42

Finding the Fourth Proportional to 31,784.60, 43,864.84 and 18,356.42

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Solution

The fourth proportional to 31,784.60, 43,864.84 and 18,356.42 is: 25,333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,784.60 : 43,864.84 = 18,356.42 : x
  2. Step 2: Convert to fraction form
    31,784.60/43,864.84 = 18,356.42/x
  3. Step 3: Cross multiply
    31,784.60x = 43,864.84 × 18,356.42
  4. Step 4: Simplify right side
    31,784.60x = 805,201,426.27
  5. Step 5: Solve for x
    x = 805,201,426.27/31,784.60
  6. Step 6: Final answer
    x = 25,333.07

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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.