Home / 30,455.09-45,651.51-17,279.63

Finding the Fourth Proportional to 30,455.09, 45,651.51 and 17,279.63

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Solution

The fourth proportional to 30,455.09, 45,651.51 and 17,279.63 is: 25,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.09 : 45,651.51 = 17,279.63 : x
  2. Step 2: Convert to fraction form
    30,455.09/45,651.51 = 17,279.63/x
  3. Step 3: Cross multiply
    30,455.09x = 45,651.51 × 17,279.63
  4. Step 4: Simplify right side
    30,455.09x = 788,840,973.48
  5. Step 5: Solve for x
    x = 788,840,973.48/30,455.09
  6. Step 6: Final answer
    x = 25,901.78

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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.