Home / 37,139.66-51,256.23-21,221.02

Finding the Fourth Proportional to 37,139.66, 51,256.23 and 21,221.02

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Solution

The fourth proportional to 37,139.66, 51,256.23 and 21,221.02 is: 29,287.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,139.66 : 51,256.23 = 21,221.02 : x
  2. Step 2: Convert to fraction form
    37,139.66/51,256.23 = 21,221.02/x
  3. Step 3: Cross multiply
    37,139.66x = 51,256.23 × 21,221.02
  4. Step 4: Simplify right side
    37,139.66x = 1,087,709,274.24
  5. Step 5: Solve for x
    x = 1,087,709,274.24/37,139.66
  6. Step 6: Final answer
    x = 29,287.01

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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.