Home / 27,139.40-37,448.02-15,203.24

Finding the Fourth Proportional to 27,139.40, 37,448.02 and 15,203.24

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Solution

The fourth proportional to 27,139.40, 37,448.02 and 15,203.24 is: 20,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.40 : 37,448.02 = 15,203.24 : x
  2. Step 2: Convert to fraction form
    27,139.40/37,448.02 = 15,203.24/x
  3. Step 3: Cross multiply
    27,139.40x = 37,448.02 × 15,203.24
  4. Step 4: Simplify right side
    27,139.40x = 569,331,329.20
  5. Step 5: Solve for x
    x = 569,331,329.20/27,139.40
  6. Step 6: Final answer
    x = 20,978.03

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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.