Home / 27,589.94-38,071.48-15,487.65

Finding the Fourth Proportional to 27,589.94, 38,071.48 and 15,487.65

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Solution

The fourth proportional to 27,589.94, 38,071.48 and 15,487.65 is: 21,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,589.94 : 38,071.48 = 15,487.65 : x
  2. Step 2: Convert to fraction form
    27,589.94/38,071.48 = 15,487.65/x
  3. Step 3: Cross multiply
    27,589.94x = 38,071.48 × 15,487.65
  4. Step 4: Simplify right side
    27,589.94x = 589,637,757.22
  5. Step 5: Solve for x
    x = 589,637,757.22/27,589.94
  6. Step 6: Final answer
    x = 21,371.48

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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.