Home / 27,809.52-38,367.36-15,864.24

Finding the Fourth Proportional to 27,809.52, 38,367.36 and 15,864.24

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Solution

The fourth proportional to 27,809.52, 38,367.36 and 15,864.24 is: 21,887.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.52 : 38,367.36 = 15,864.24 : x
  2. Step 2: Convert to fraction form
    27,809.52/38,367.36 = 15,864.24/x
  3. Step 3: Cross multiply
    27,809.52x = 38,367.36 × 15,864.24
  4. Step 4: Simplify right side
    27,809.52x = 608,669,007.21
  5. Step 5: Solve for x
    x = 608,669,007.21/27,809.52
  6. Step 6: Final answer
    x = 21,887.07

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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.