Home / 30,470.38-42,051.27-17,042.89

Finding the Fourth Proportional to 30,470.38, 42,051.27 and 17,042.89

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Solution

The fourth proportional to 30,470.38, 42,051.27 and 17,042.89 is: 23,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,470.38 : 42,051.27 = 17,042.89 : x
  2. Step 2: Convert to fraction form
    30,470.38/42,051.27 = 17,042.89/x
  3. Step 3: Cross multiply
    30,470.38x = 42,051.27 × 17,042.89
  4. Step 4: Simplify right side
    30,470.38x = 716,675,168.97
  5. Step 5: Solve for x
    x = 716,675,168.97/30,470.38
  6. Step 6: Final answer
    x = 23,520.39

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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.