Home / 30,827.11-42,541.61-18,077.69

Finding the Fourth Proportional to 30,827.11, 42,541.61 and 18,077.69

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Solution

The fourth proportional to 30,827.11, 42,541.61 and 18,077.69 is: 24,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827.11 : 42,541.61 = 18,077.69 : x
  2. Step 2: Convert to fraction form
    30,827.11/42,541.61 = 18,077.69/x
  3. Step 3: Cross multiply
    30,827.11x = 42,541.61 × 18,077.69
  4. Step 4: Simplify right side
    30,827.11x = 769,054,037.68
  5. Step 5: Solve for x
    x = 769,054,037.68/30,827.11
  6. Step 6: Final answer
    x = 24,947.33

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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.