Home / 27,782.15-38,329.84-15,836.87

Finding the Fourth Proportional to 27,782.15, 38,329.84 and 15,836.87

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Solution

The fourth proportional to 27,782.15, 38,329.84 and 15,836.87 is: 21,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,782.15 : 38,329.84 = 15,836.87 : x
  2. Step 2: Convert to fraction form
    27,782.15/38,329.84 = 15,836.87/x
  3. Step 3: Cross multiply
    27,782.15x = 38,329.84 × 15,836.87
  4. Step 4: Simplify right side
    27,782.15x = 607,024,614.02
  5. Step 5: Solve for x
    x = 607,024,614.02/27,782.15
  6. Step 6: Final answer
    x = 21,849.45

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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.