Home / 37,042.47-51,121.80-21,127.59

Finding the Fourth Proportional to 37,042.47, 51,121.80 and 21,127.59

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Solution

The fourth proportional to 37,042.47, 51,121.80 and 21,127.59 is: 29,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,042.47 : 51,121.80 = 21,127.59 : x
  2. Step 2: Convert to fraction form
    37,042.47/51,121.80 = 21,127.59/x
  3. Step 3: Cross multiply
    37,042.47x = 51,121.80 × 21,127.59
  4. Step 4: Simplify right side
    37,042.47x = 1,080,080,430.46
  5. Step 5: Solve for x
    x = 1,080,080,430.46/37,042.47
  6. Step 6: Final answer
    x = 29,157.89

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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.