Home / 31,784.10-43,864.14-18,355.92

Finding the Fourth Proportional to 31,784.10, 43,864.14 and 18,355.92

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Solution

The fourth proportional to 31,784.10, 43,864.14 and 18,355.92 is: 25,332.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,784.10 : 43,864.14 = 18,355.92 : x
  2. Step 2: Convert to fraction form
    31,784.10/43,864.14 = 18,355.92/x
  3. Step 3: Cross multiply
    31,784.10x = 43,864.14 × 18,355.92
  4. Step 4: Simplify right side
    31,784.10x = 805,166,644.71
  5. Step 5: Solve for x
    x = 805,166,644.71/31,784.10
  6. Step 6: Final answer
    x = 25,332.37

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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.