Home / 27,600.42-38,089.76-15,664.87

Finding the Fourth Proportional to 27,600.42, 38,089.76 and 15,664.87

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Solution

The fourth proportional to 27,600.42, 38,089.76 and 15,664.87 is: 21,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,600.42 : 38,089.76 = 15,664.87 : x
  2. Step 2: Convert to fraction form
    27,600.42/38,089.76 = 15,664.87/x
  3. Step 3: Cross multiply
    27,600.42x = 38,089.76 × 15,664.87
  4. Step 4: Simplify right side
    27,600.42x = 596,671,022.92
  5. Step 5: Solve for x
    x = 596,671,022.92/27,600.42
  6. Step 6: Final answer
    x = 21,618.19

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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.