Home / 30,821.59-42,533.76-16,674.43

Finding the Fourth Proportional to 30,821.59, 42,533.76 and 16,674.43

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Solution

The fourth proportional to 30,821.59, 42,533.76 and 16,674.43 is: 23,010.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821.59 : 42,533.76 = 16,674.43 : x
  2. Step 2: Convert to fraction form
    30,821.59/42,533.76 = 16,674.43/x
  3. Step 3: Cross multiply
    30,821.59x = 42,533.76 × 16,674.43
  4. Step 4: Simplify right side
    30,821.59x = 709,226,203.76
  5. Step 5: Solve for x
    x = 709,226,203.76/30,821.59
  6. Step 6: Final answer
    x = 23,010.69

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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.