Home / 30,579.94-42,199.80-17,151.16

Finding the Fourth Proportional to 30,579.94, 42,199.80 and 17,151.16

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Solution

The fourth proportional to 30,579.94, 42,199.80 and 17,151.16 is: 23,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.94 : 42,199.80 = 17,151.16 : x
  2. Step 2: Convert to fraction form
    30,579.94/42,199.80 = 17,151.16/x
  3. Step 3: Cross multiply
    30,579.94x = 42,199.80 × 17,151.16
  4. Step 4: Simplify right side
    30,579.94x = 723,775,521.77
  5. Step 5: Solve for x
    x = 723,775,521.77/30,579.94
  6. Step 6: Final answer
    x = 23,668.31

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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.