Home / 30,686.73-42,342.39-17,256.93

Finding the Fourth Proportional to 30,686.73, 42,342.39 and 17,256.93

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Solution

The fourth proportional to 30,686.73, 42,342.39 and 17,256.93 is: 23,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,686.73 : 42,342.39 = 17,256.93 : x
  2. Step 2: Convert to fraction form
    30,686.73/42,342.39 = 17,256.93/x
  3. Step 3: Cross multiply
    30,686.73x = 42,342.39 × 17,256.93
  4. Step 4: Simplify right side
    30,686.73x = 730,699,660.26
  5. Step 5: Solve for x
    x = 730,699,660.26/30,686.73
  6. Step 6: Final answer
    x = 23,811.58

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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.