Home / 30,795.28-42,497.36-16,648.12

Finding the Fourth Proportional to 30,795.28, 42,497.36 and 16,648.12

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Solution

The fourth proportional to 30,795.28, 42,497.36 and 16,648.12 is: 22,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,795.28 : 42,497.36 = 16,648.12 : x
  2. Step 2: Convert to fraction form
    30,795.28/42,497.36 = 16,648.12/x
  3. Step 3: Cross multiply
    30,795.28x = 42,497.36 × 16,648.12
  4. Step 4: Simplify right side
    30,795.28x = 707,501,148.96
  5. Step 5: Solve for x
    x = 707,501,148.96/30,795.28
  6. Step 6: Final answer
    x = 22,974.34

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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.