Home / 31,357.89-43,273.78-17,017.79

Finding the Fourth Proportional to 31,357.89, 43,273.78 and 17,017.79

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Solution

The fourth proportional to 31,357.89, 43,273.78 and 17,017.79 is: 23,484.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.89 : 43,273.78 = 17,017.79 : x
  2. Step 2: Convert to fraction form
    31,357.89/43,273.78 = 17,017.79/x
  3. Step 3: Cross multiply
    31,357.89x = 43,273.78 × 17,017.79
  4. Step 4: Simplify right side
    31,357.89x = 736,423,841.63
  5. Step 5: Solve for x
    x = 736,423,841.63/31,357.89
  6. Step 6: Final answer
    x = 23,484.48

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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.