Home / 30,042.90-41,458.68-18,112.77

Finding the Fourth Proportional to 30,042.90, 41,458.68 and 18,112.77

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Solution

The fourth proportional to 30,042.90, 41,458.68 and 18,112.77 is: 24,995.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.90 : 41,458.68 = 18,112.77 : x
  2. Step 2: Convert to fraction form
    30,042.90/41,458.68 = 18,112.77/x
  3. Step 3: Cross multiply
    30,042.90x = 41,458.68 × 18,112.77
  4. Step 4: Simplify right side
    30,042.90x = 750,931,535.34
  5. Step 5: Solve for x
    x = 750,931,535.34/30,042.90
  6. Step 6: Final answer
    x = 24,995.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.