Home / 31,320.45-46,918.01-18,833.58

Finding the Fourth Proportional to 31,320.45, 46,918.01 and 18,833.58

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Solution

The fourth proportional to 31,320.45, 46,918.01 and 18,833.58 is: 28,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.45 : 46,918.01 = 18,833.58 : x
  2. Step 2: Convert to fraction form
    31,320.45/46,918.01 = 18,833.58/x
  3. Step 3: Cross multiply
    31,320.45x = 46,918.01 × 18,833.58
  4. Step 4: Simplify right side
    31,320.45x = 883,634,141.86
  5. Step 5: Solve for x
    x = 883,634,141.86/31,320.45
  6. Step 6: Final answer
    x = 28,212.69

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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.