Home / 30,769.61-42,462.09-16,622.46

Finding the Fourth Proportional to 30,769.61, 42,462.09 and 16,622.46

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Solution

The fourth proportional to 30,769.61, 42,462.09 and 16,622.46 is: 22,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,769.61 : 42,462.09 = 16,622.46 : x
  2. Step 2: Convert to fraction form
    30,769.61/42,462.09 = 16,622.46/x
  3. Step 3: Cross multiply
    30,769.61x = 42,462.09 × 16,622.46
  4. Step 4: Simplify right side
    30,769.61x = 705,824,392.54
  5. Step 5: Solve for x
    x = 705,824,392.54/30,769.61
  6. Step 6: Final answer
    x = 22,939.01

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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.