Home / 27,308.16-37,685.12-15,371.28

Finding the Fourth Proportional to 27,308.16, 37,685.12 and 15,371.28

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Solution

The fourth proportional to 27,308.16, 37,685.12 and 15,371.28 is: 21,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,308.16 : 37,685.12 = 15,371.28 : x
  2. Step 2: Convert to fraction form
    27,308.16/37,685.12 = 15,371.28/x
  3. Step 3: Cross multiply
    27,308.16x = 37,685.12 × 15,371.28
  4. Step 4: Simplify right side
    27,308.16x = 579,268,454.50
  5. Step 5: Solve for x
    x = 579,268,454.50/27,308.16
  6. Step 6: Final answer
    x = 21,212.28

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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.