Home / 27,600.48-38,089.71-15,664.32

Finding the Fourth Proportional to 27,600.48, 38,089.71 and 15,664.32

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Solution

The fourth proportional to 27,600.48, 38,089.71 and 15,664.32 is: 21,617.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,600.48 : 38,089.71 = 15,664.32 : x
  2. Step 2: Convert to fraction form
    27,600.48/38,089.71 = 15,664.32/x
  3. Step 3: Cross multiply
    27,600.48x = 38,089.71 × 15,664.32
  4. Step 4: Simplify right side
    27,600.48x = 596,649,406.15
  5. Step 5: Solve for x
    x = 596,649,406.15/27,600.48
  6. Step 6: Final answer
    x = 21,617.36

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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.