Home / 30,827.46-42,541.83-16,680.30

Finding the Fourth Proportional to 30,827.46, 42,541.83 and 16,680.30

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Solution

The fourth proportional to 30,827.46, 42,541.83 and 16,680.30 is: 23,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827.46 : 42,541.83 = 16,680.30 : x
  2. Step 2: Convert to fraction form
    30,827.46/42,541.83 = 16,680.30/x
  3. Step 3: Cross multiply
    30,827.46x = 42,541.83 × 16,680.30
  4. Step 4: Simplify right side
    30,827.46x = 709,610,486.95
  5. Step 5: Solve for x
    x = 709,610,486.95/30,827.46
  6. Step 6: Final answer
    x = 23,018.78

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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.