Home / 30,342.90-45,520.89-11,622.93

Finding the Fourth Proportional to 30,342.90, 45,520.89 and 11,622.93

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Solution

The fourth proportional to 30,342.90, 45,520.89 and 11,622.93 is: 17,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.90 : 45,520.89 = 11,622.93 : x
  2. Step 2: Convert to fraction form
    30,342.90/45,520.89 = 11,622.93/x
  3. Step 3: Cross multiply
    30,342.90x = 45,520.89 × 11,622.93
  4. Step 4: Simplify right side
    30,342.90x = 529,085,903.72
  5. Step 5: Solve for x
    x = 529,085,903.72/30,342.90
  6. Step 6: Final answer
    x = 17,436.89

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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.