Home / 30,857.08-42,582.76-16,709.92

Finding the Fourth Proportional to 30,857.08, 42,582.76 and 16,709.92

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Solution

The fourth proportional to 30,857.08, 42,582.76 and 16,709.92 is: 23,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,857.08 : 42,582.76 = 16,709.92 : x
  2. Step 2: Convert to fraction form
    30,857.08/42,582.76 = 16,709.92/x
  3. Step 3: Cross multiply
    30,857.08x = 42,582.76 × 16,709.92
  4. Step 4: Simplify right side
    30,857.08x = 711,554,512.98
  5. Step 5: Solve for x
    x = 711,554,512.98/30,857.08
  6. Step 6: Final answer
    x = 23,059.68

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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.