Home / 30,827.92-42,542.55-16,680.76

Finding the Fourth Proportional to 30,827.92, 42,542.55 and 16,680.76

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Solution

The fourth proportional to 30,827.92, 42,542.55 and 16,680.76 is: 23,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827.92 : 42,542.55 = 16,680.76 : x
  2. Step 2: Convert to fraction form
    30,827.92/42,542.55 = 16,680.76/x
  3. Step 3: Cross multiply
    30,827.92x = 42,542.55 × 16,680.76
  4. Step 4: Simplify right side
    30,827.92x = 709,642,066.34
  5. Step 5: Solve for x
    x = 709,642,066.34/30,827.92
  6. Step 6: Final answer
    x = 23,019.46

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Double scale
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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.