Home / 30,200.12-45,282.40-9,133.80

Finding the Fourth Proportional to 30,200.12, 45,282.40 and 9,133.80

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Solution

The fourth proportional to 30,200.12, 45,282.40 and 9,133.80 is: 13,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.12 : 45,282.40 = 9,133.80 : x
  2. Step 2: Convert to fraction form
    30,200.12/45,282.40 = 9,133.80/x
  3. Step 3: Cross multiply
    30,200.12x = 45,282.40 × 9,133.80
  4. Step 4: Simplify right side
    30,200.12x = 413,600,385.12
  5. Step 5: Solve for x
    x = 413,600,385.12/30,200.12
  6. Step 6: Final answer
    x = 13,695.32

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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.