Home / 30,763.59-42,453.78-16,616.45

Finding the Fourth Proportional to 30,763.59, 42,453.78 and 16,616.45

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Solution

The fourth proportional to 30,763.59, 42,453.78 and 16,616.45 is: 22,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,763.59 : 42,453.78 = 16,616.45 : x
  2. Step 2: Convert to fraction form
    30,763.59/42,453.78 = 16,616.45/x
  3. Step 3: Cross multiply
    30,763.59x = 42,453.78 × 16,616.45
  4. Step 4: Simplify right side
    30,763.59x = 705,430,900.41
  5. Step 5: Solve for x
    x = 705,430,900.41/30,763.59
  6. Step 6: Final answer
    x = 22,930.71

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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.