Home / 30,017.20-45,032.48-8,957.60

Finding the Fourth Proportional to 30,017.20, 45,032.48 and 8,957.60

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Solution

The fourth proportional to 30,017.20, 45,032.48 and 8,957.60 is: 13,438.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,017.20 : 45,032.48 = 8,957.60 : x
  2. Step 2: Convert to fraction form
    30,017.20/45,032.48 = 8,957.60/x
  3. Step 3: Cross multiply
    30,017.20x = 45,032.48 × 8,957.60
  4. Step 4: Simplify right side
    30,017.20x = 403,382,942.85
  5. Step 5: Solve for x
    x = 403,382,942.85/30,017.20
  6. Step 6: Final answer
    x = 13,438.39

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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.