Home / 30,946.86-42,707.25-16,800.21

Finding the Fourth Proportional to 30,946.86, 42,707.25 and 16,800.21

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Solution

The fourth proportional to 30,946.86, 42,707.25 and 16,800.21 is: 23,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,946.86 : 42,707.25 = 16,800.21 : x
  2. Step 2: Convert to fraction form
    30,946.86/42,707.25 = 16,800.21/x
  3. Step 3: Cross multiply
    30,946.86x = 42,707.25 × 16,800.21
  4. Step 4: Simplify right side
    30,946.86x = 717,490,768.52
  5. Step 5: Solve for x
    x = 717,490,768.52/30,946.86
  6. Step 6: Final answer
    x = 23,184.61

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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.