Home / 30,187.30-45,282.17-7,698.56

Finding the Fourth Proportional to 30,187.30, 45,282.17 and 7,698.56

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Solution

The fourth proportional to 30,187.30, 45,282.17 and 7,698.56 is: 11,548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,187.30 : 45,282.17 = 7,698.56 : x
  2. Step 2: Convert to fraction form
    30,187.30/45,282.17 = 7,698.56/x
  3. Step 3: Cross multiply
    30,187.30x = 45,282.17 × 7,698.56
  4. Step 4: Simplify right side
    30,187.30x = 348,607,389.47
  5. Step 5: Solve for x
    x = 348,607,389.47/30,187.30
  6. Step 6: Final answer
    x = 11,548.15

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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.