Home / 30,438.30-45,657.45-17,316.30

Finding the Fourth Proportional to 30,438.30, 45,657.45 and 17,316.30

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Solution

The fourth proportional to 30,438.30, 45,657.45 and 17,316.30 is: 25,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438.30 : 45,657.45 = 17,316.30 : x
  2. Step 2: Convert to fraction form
    30,438.30/45,657.45 = 17,316.30/x
  3. Step 3: Cross multiply
    30,438.30x = 45,657.45 × 17,316.30
  4. Step 4: Simplify right side
    30,438.30x = 790,618,101.44
  5. Step 5: Solve for x
    x = 790,618,101.44/30,438.30
  6. Step 6: Final answer
    x = 25,974.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.