Home / 30,810.15-42,517.80-16,662.96

Finding the Fourth Proportional to 30,810.15, 42,517.80 and 16,662.96

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Solution

The fourth proportional to 30,810.15, 42,517.80 and 16,662.96 is: 22,994.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.15 : 42,517.80 = 16,662.96 : x
  2. Step 2: Convert to fraction form
    30,810.15/42,517.80 = 16,662.96/x
  3. Step 3: Cross multiply
    30,810.15x = 42,517.80 × 16,662.96
  4. Step 4: Simplify right side
    30,810.15x = 708,472,400.69
  5. Step 5: Solve for x
    x = 708,472,400.69/30,810.15
  6. Step 6: Final answer
    x = 22,994.77

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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.