Home / 30,816.28-42,526.50-16,669.06

Finding the Fourth Proportional to 30,816.28, 42,526.50 and 16,669.06

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Solution

The fourth proportional to 30,816.28, 42,526.50 and 16,669.06 is: 23,003.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.28 : 42,526.50 = 16,669.06 : x
  2. Step 2: Convert to fraction form
    30,816.28/42,526.50 = 16,669.06/x
  3. Step 3: Cross multiply
    30,816.28x = 42,526.50 × 16,669.06
  4. Step 4: Simplify right side
    30,816.28x = 708,876,780.09
  5. Step 5: Solve for x
    x = 708,876,780.09/30,816.28
  6. Step 6: Final answer
    x = 23,003.32

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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.