Home / 30,827.38-42,541.89-16,680.34

Finding the Fourth Proportional to 30,827.38, 42,541.89 and 16,680.34

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Solution

The fourth proportional to 30,827.38, 42,541.89 and 16,680.34 is: 23,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827.38 : 42,541.89 = 16,680.34 : x
  2. Step 2: Convert to fraction form
    30,827.38/42,541.89 = 16,680.34/x
  3. Step 3: Cross multiply
    30,827.38x = 42,541.89 × 16,680.34
  4. Step 4: Simplify right side
    30,827.38x = 709,613,189.44
  5. Step 5: Solve for x
    x = 709,613,189.44/30,827.38
  6. Step 6: Final answer
    x = 23,018.93

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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.