Home / 30,765.09-42,455.85-16,617.95

Finding the Fourth Proportional to 30,765.09, 42,455.85 and 16,617.95

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Solution

The fourth proportional to 30,765.09, 42,455.85 and 16,617.95 is: 22,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.09 : 42,455.85 = 16,617.95 : x
  2. Step 2: Convert to fraction form
    30,765.09/42,455.85 = 16,617.95/x
  3. Step 3: Cross multiply
    30,765.09x = 42,455.85 × 16,617.95
  4. Step 4: Simplify right side
    30,765.09x = 705,528,980.23
  5. Step 5: Solve for x
    x = 705,528,980.23/30,765.09
  6. Step 6: Final answer
    x = 22,932.78

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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.