Home / 30,821.32-42,533.52-16,674.28

Finding the Fourth Proportional to 30,821.32, 42,533.52 and 16,674.28

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Solution

The fourth proportional to 30,821.32, 42,533.52 and 16,674.28 is: 23,010.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821.32 : 42,533.52 = 16,674.28 : x
  2. Step 2: Convert to fraction form
    30,821.32/42,533.52 = 16,674.28/x
  3. Step 3: Cross multiply
    30,821.32x = 42,533.52 × 16,674.28
  4. Step 4: Simplify right side
    30,821.32x = 709,215,821.87
  5. Step 5: Solve for x
    x = 709,215,821.87/30,821.32
  6. Step 6: Final answer
    x = 23,010.56

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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.