Home / 30,262.86-45,384.57-11,528.78

Finding the Fourth Proportional to 30,262.86, 45,384.57 and 11,528.78

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Solution

The fourth proportional to 30,262.86, 45,384.57 and 11,528.78 is: 17,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,262.86 : 45,384.57 = 11,528.78 : x
  2. Step 2: Convert to fraction form
    30,262.86/45,384.57 = 11,528.78/x
  3. Step 3: Cross multiply
    30,262.86x = 45,384.57 × 11,528.78
  4. Step 4: Simplify right side
    30,262.86x = 523,228,496.00
  5. Step 5: Solve for x
    x = 523,228,496.00/30,262.86
  6. Step 6: Final answer
    x = 17,289.46

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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.