Home / 30,200.10-45,307.35-15,411.30

Finding the Fourth Proportional to 30,200.10, 45,307.35 and 15,411.30

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Solution

The fourth proportional to 30,200.10, 45,307.35 and 15,411.30 is: 23,120.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.10 : 45,307.35 = 15,411.30 : x
  2. Step 2: Convert to fraction form
    30,200.10/45,307.35 = 15,411.30/x
  3. Step 3: Cross multiply
    30,200.10x = 45,307.35 × 15,411.30
  4. Step 4: Simplify right side
    30,200.10x = 698,245,163.06
  5. Step 5: Solve for x
    x = 698,245,163.06/30,200.10
  6. Step 6: Final answer
    x = 23,120.62

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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.