Home / 27,139.59-37,448.28-15,203.43

Finding the Fourth Proportional to 27,139.59, 37,448.28 and 15,203.43

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Solution

The fourth proportional to 27,139.59, 37,448.28 and 15,203.43 is: 20,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.59 : 37,448.28 = 15,203.43 : x
  2. Step 2: Convert to fraction form
    27,139.59/37,448.28 = 15,203.43/x
  3. Step 3: Cross multiply
    27,139.59x = 37,448.28 × 15,203.43
  4. Step 4: Simplify right side
    27,139.59x = 569,342,303.60
  5. Step 5: Solve for x
    x = 569,342,303.60/27,139.59
  6. Step 6: Final answer
    x = 20,978.29

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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.