Home / 30,915.05-42,679.31-24,186.38

Finding the Fourth Proportional to 30,915.05, 42,679.31 and 24,186.38

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Solution

The fourth proportional to 30,915.05, 42,679.31 and 24,186.38 is: 33,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,915.05 : 42,679.31 = 24,186.38 : x
  2. Step 2: Convert to fraction form
    30,915.05/42,679.31 = 24,186.38/x
  3. Step 3: Cross multiply
    30,915.05x = 42,679.31 × 24,186.38
  4. Step 4: Simplify right side
    30,915.05x = 1,032,257,675.47
  5. Step 5: Solve for x
    x = 1,032,257,675.47/30,915.05
  6. Step 6: Final answer
    x = 33,390.14

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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.