Home / 30,777.81-42,473.36-16,630.65

Finding the Fourth Proportional to 30,777.81, 42,473.36 and 16,630.65

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Solution

The fourth proportional to 30,777.81, 42,473.36 and 16,630.65 is: 22,950.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,777.81 : 42,473.36 = 16,630.65 : x
  2. Step 2: Convert to fraction form
    30,777.81/42,473.36 = 16,630.65/x
  3. Step 3: Cross multiply
    30,777.81x = 42,473.36 × 16,630.65
  4. Step 4: Simplify right side
    30,777.81x = 706,359,584.48
  5. Step 5: Solve for x
    x = 706,359,584.48/30,777.81
  6. Step 6: Final answer
    x = 22,950.29

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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.