Home / 27,916.15-38,523.84-15,340.63

Finding the Fourth Proportional to 27,916.15, 38,523.84 and 15,340.63

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Solution

The fourth proportional to 27,916.15, 38,523.84 and 15,340.63 is: 21,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,916.15 : 38,523.84 = 15,340.63 : x
  2. Step 2: Convert to fraction form
    27,916.15/38,523.84 = 15,340.63/x
  3. Step 3: Cross multiply
    27,916.15x = 38,523.84 × 15,340.63
  4. Step 4: Simplify right side
    27,916.15x = 590,979,975.62
  5. Step 5: Solve for x
    x = 590,979,975.62/27,916.15
  6. Step 6: Final answer
    x = 21,169.82

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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.