Home / 30,816.99-42,527.30-16,669.80

Finding the Fourth Proportional to 30,816.99, 42,527.30 and 16,669.80

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Solution

The fourth proportional to 30,816.99, 42,527.30 and 16,669.80 is: 23,004.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.99 : 42,527.30 = 16,669.80 : x
  2. Step 2: Convert to fraction form
    30,816.99/42,527.30 = 16,669.80/x
  3. Step 3: Cross multiply
    30,816.99x = 42,527.30 × 16,669.80
  4. Step 4: Simplify right side
    30,816.99x = 708,921,502.19
  5. Step 5: Solve for x
    x = 708,921,502.19/30,816.99
  6. Step 6: Final answer
    x = 23,004.24

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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.