Home / 27,905.09-38,509.02-15,329.84

Finding the Fourth Proportional to 27,905.09, 38,509.02 and 15,329.84

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Solution

The fourth proportional to 27,905.09, 38,509.02 and 15,329.84 is: 21,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.09 : 38,509.02 = 15,329.84 : x
  2. Step 2: Convert to fraction form
    27,905.09/38,509.02 = 15,329.84/x
  3. Step 3: Cross multiply
    27,905.09x = 38,509.02 × 15,329.84
  4. Step 4: Simplify right side
    27,905.09x = 590,336,922.61
  5. Step 5: Solve for x
    x = 590,336,922.61/27,905.09
  6. Step 6: Final answer
    x = 21,155.17

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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.