Home / 30,312.34-45,469.72-15,517.28

Finding the Fourth Proportional to 30,312.34, 45,469.72 and 15,517.28

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Solution

The fourth proportional to 30,312.34, 45,469.72 and 15,517.28 is: 23,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.34 : 45,469.72 = 15,517.28 : x
  2. Step 2: Convert to fraction form
    30,312.34/45,469.72 = 15,517.28/x
  3. Step 3: Cross multiply
    30,312.34x = 45,469.72 × 15,517.28
  4. Step 4: Simplify right side
    30,312.34x = 705,566,376.76
  5. Step 5: Solve for x
    x = 705,566,376.76/30,312.34
  6. Step 6: Final answer
    x = 23,276.54

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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.