Home / 30,302.30-45,415.65-15,517.10

Finding the Fourth Proportional to 30,302.30, 45,415.65 and 15,517.10

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Solution

The fourth proportional to 30,302.30, 45,415.65 and 15,517.10 is: 23,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302.30 : 45,415.65 = 15,517.10 : x
  2. Step 2: Convert to fraction form
    30,302.30/45,415.65 = 15,517.10/x
  3. Step 3: Cross multiply
    30,302.30x = 45,415.65 × 15,517.10
  4. Step 4: Simplify right side
    30,302.30x = 704,719,182.62
  5. Step 5: Solve for x
    x = 704,719,182.62/30,302.30
  6. Step 6: Final answer
    x = 23,256.29

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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.