Home / 30,815.17-42,524.84-16,668.01

Finding the Fourth Proportional to 30,815.17, 42,524.84 and 16,668.01

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Solution

The fourth proportional to 30,815.17, 42,524.84 and 16,668.01 is: 23,001.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.17 : 42,524.84 = 16,668.01 : x
  2. Step 2: Convert to fraction form
    30,815.17/42,524.84 = 16,668.01/x
  3. Step 3: Cross multiply
    30,815.17x = 42,524.84 × 16,668.01
  4. Step 4: Simplify right side
    30,815.17x = 708,804,504.51
  5. Step 5: Solve for x
    x = 708,804,504.51/30,815.17
  6. Step 6: Final answer
    x = 23,001.81

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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.