Home / 30,934.04-42,688.97-16,786.89

Finding the Fourth Proportional to 30,934.04, 42,688.97 and 16,786.89

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Solution

The fourth proportional to 30,934.04, 42,688.97 and 16,786.89 is: 23,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.04 : 42,688.97 = 16,786.89 : x
  2. Step 2: Convert to fraction form
    30,934.04/42,688.97 = 16,786.89/x
  3. Step 3: Cross multiply
    30,934.04x = 42,688.97 × 16,786.89
  4. Step 4: Simplify right side
    30,934.04x = 716,614,959.67
  5. Step 5: Solve for x
    x = 716,614,959.67/30,934.04
  6. Step 6: Final answer
    x = 23,165.90

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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.