Home / 27,649.57-38,156.31-15,074.32

Finding the Fourth Proportional to 27,649.57, 38,156.31 and 15,074.32

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Solution

The fourth proportional to 27,649.57, 38,156.31 and 15,074.32 is: 20,802.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,649.57 : 38,156.31 = 15,074.32 : x
  2. Step 2: Convert to fraction form
    27,649.57/38,156.31 = 15,074.32/x
  3. Step 3: Cross multiply
    27,649.57x = 38,156.31 × 15,074.32
  4. Step 4: Simplify right side
    27,649.57x = 575,180,426.96
  5. Step 5: Solve for x
    x = 575,180,426.96/27,649.57
  6. Step 6: Final answer
    x = 20,802.51

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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.