Home / 30,871.09-42,602.11-16,723.94

Finding the Fourth Proportional to 30,871.09, 42,602.11 and 16,723.94

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Solution

The fourth proportional to 30,871.09, 42,602.11 and 16,723.94 is: 23,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.09 : 42,602.11 = 16,723.94 : x
  2. Step 2: Convert to fraction form
    30,871.09/42,602.11 = 16,723.94/x
  3. Step 3: Cross multiply
    30,871.09x = 42,602.11 × 16,723.94
  4. Step 4: Simplify right side
    30,871.09x = 712,475,131.51
  5. Step 5: Solve for x
    x = 712,475,131.51/30,871.09
  6. Step 6: Final answer
    x = 23,079.04

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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.