Home / 30,765.23-42,456.89-17,335.74

Finding the Fourth Proportional to 30,765.23, 42,456.89 and 17,335.74

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Solution

The fourth proportional to 30,765.23, 42,456.89 and 17,335.74 is: 23,923.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.23 : 42,456.89 = 17,335.74 : x
  2. Step 2: Convert to fraction form
    30,765.23/42,456.89 = 17,335.74/x
  3. Step 3: Cross multiply
    30,765.23x = 42,456.89 × 17,335.74
  4. Step 4: Simplify right side
    30,765.23x = 736,021,606.25
  5. Step 5: Solve for x
    x = 736,021,606.25/30,765.23
  6. Step 6: Final answer
    x = 23,923.81

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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.