Home / 31,285.81-43,183.47-17,864.38

Finding the Fourth Proportional to 31,285.81, 43,183.47 and 17,864.38

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Solution

The fourth proportional to 31,285.81, 43,183.47 and 17,864.38 is: 24,658.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.81 : 43,183.47 = 17,864.38 : x
  2. Step 2: Convert to fraction form
    31,285.81/43,183.47 = 17,864.38/x
  3. Step 3: Cross multiply
    31,285.81x = 43,183.47 × 17,864.38
  4. Step 4: Simplify right side
    31,285.81x = 771,445,917.80
  5. Step 5: Solve for x
    x = 771,445,917.80/31,285.81
  6. Step 6: Final answer
    x = 24,658.01

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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.