Home / 30,816.91-42,527.32-16,669.72

Finding the Fourth Proportional to 30,816.91, 42,527.32 and 16,669.72

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Solution

The fourth proportional to 30,816.91, 42,527.32 and 16,669.72 is: 23,004.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.91 : 42,527.32 = 16,669.72 : x
  2. Step 2: Convert to fraction form
    30,816.91/42,527.32 = 16,669.72/x
  3. Step 3: Cross multiply
    30,816.91x = 42,527.32 × 16,669.72
  4. Step 4: Simplify right side
    30,816.91x = 708,918,516.75
  5. Step 5: Solve for x
    x = 708,918,516.75/30,816.91
  6. Step 6: Final answer
    x = 23,004.21

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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.